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Hey guys, welcome back to Simplified by
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Singum. Well, today we are going to
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solve exercise three. And as I said
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before, these are the series of episodes
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that I'm going to post every single day
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where we are going to solve exercises,
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Python exercises. So this concept is
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actually for beginners. So like
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beginners who have completed their
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basics and now they want real hands-on
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practice. So people like them these
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exercises might really really help them.
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So my job is to explain you the exercise
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the concept and the formula and the
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problem and we are actually going to
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solve the real world problems every
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single day. So these problems are
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really interesting and these solve every
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single day and always I will try to
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cover some from maths and some from
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physics. So people who love these
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problems are really going to solve this
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and we are going to write code for that.
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So it's pretty simple. We will see what
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the concept exactly is. So the people
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who are starting from scratch can also
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understand these exercises and we are
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going to see the concept, the formula
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and the problem along with the expected
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output. So today's exercise is all about
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finding the average speed in Python. So
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you know average speed right? I'm
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thinking that you guys already know what
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exactly is average speed but by the way
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average speed is nothing but it's a
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ratio of distance and time. So
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here it is already there. So average
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speed is the ratio of the distance
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traveled to the time elapsed. So for
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example here you see a car travels 150
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km in 3 hours. So what will be the
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average speed of the car? Distance is
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150 km and the time is 3 hours. So we
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already have the formula which is
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distance by time which is simple 150 by
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3. So that will be the average speed
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which is 50 km/ hour.
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So we are going to find the average
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speed with the distance and the time. So
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we are going to calculate. So we the
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humans know that the car travels 150 if
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the car is traveling 150 km and in 3
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hours so the average speed will be 50
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km. But how can we tell the computer to
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get the average speed of an object just
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like that just by implementing this
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formula. So for that we have to give
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some set of instructions. So here we are
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going to use Python programming language
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to solve this problem to say to the
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computer to solve this and we can just
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give input and it is going to work for
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us. So as always open your favorite
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coding editor and my favorite is VS
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code. So here I kept everything together
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the concept the formula and the problem
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and the expected output. So the concept
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is simple. We are going to find the
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average speed and we know the formula
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for that which is average speed is
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nothing but the distance by time. We
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have the distance and we have the time.
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So now let's calculate the average speed
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by just writing few lines of code. So
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as always I will take the formula first
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and then I will try to write code
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according to that. So this is the
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formula and we need the distance. So
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distance is 150 km. So just give 150
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three and yeah that's it. It is actually
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done. So you can just print average
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speed and you can see the output which
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is pretty simple. It's 50.0.
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So as I said before this is in
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programming perspective you are the
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developer and you did this but in order
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to print it as user friendly I'm going
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you can just do something like f the
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of an object you can give car in this
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case but for now I'm going to give
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and that's it so this is going to give
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as the average speed of an object
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and it's pretty simple.
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See, and instead you can also give
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input. If you see my previous episodes,
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you already know that I'm going to do
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this. So, enter the distance,
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right? And here you just give
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Now pause this video for a second and
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see whether this go right or wrong. Do
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you think everything seems right and do
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you think we are going to get the same
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output once we give input?
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So here the distance 150 and the time is
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three. So here we are getting a weird
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error right? It's type error unsupported
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operand type of s because as I said
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before in the previous episodes if you
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watch the previous exercises where
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whenever you are giving any input by
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default computer will always take
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strings. So in order to tell computer
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that hey computer this is not the string
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this is integer. So I want you to
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convert that string to integer. So for
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that you just give int here and it will
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okay now it'll be thinking like oh okay
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this is string and I have to convert it
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to integer and I have to store it in the
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variable d right and you can just give
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int here as well because we need integer
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value here as well and now it is going
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to solve it and it is going to give you
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See, it's that simple. So, whenever you
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get any errors, don't panic. See what's
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going on because that is where you learn
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a lot. That is where you understand the
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importance of type conversion. That is
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where you will understand the importance
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of variables, importance of syntax,
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every minute detail regarding the code,
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the error that you made. So, that's how
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you learn and remember the things.
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So yeah, this is how you can do you can
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get the average speed of an object.
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I hope this video actually helped you
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somehow and I'm guessing that you have
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learned something new here. If you still
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have any doubts, if you're not getting
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the concept, then just comment down
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below. I'll always be there to read the
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comments and I'll try to respond as soon
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as possible once I'm done with that.
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So yeah, see you in the next interesting
