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Hi everyone.
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We have a question in which we have given that a ball which is having a mass of 0 .01 kg.
00:08
That means in the question we have given the mass of the ball.
00:21
Mass of the ball is given.
00:22
Let's say m which is 0 .01 kg.
00:29
And also this ball is moving with a velocity of 50 meter per second.
00:32
That means initially it was moving with the initial velocity of the ball.
00:39
That is initial moving velocity which is u is equals to 50 meter per second now this ball is applied by a force for a two second that means now the force has applied now the force has applied for two seconds for two seconds and then the final velocity of the ball is becoming 70 meter per second so the final velocity of ball which is basically v is equals to 70 meter per second so what do we need to find we need to find the initial and final momentum of the ball so initial and final momentum of ball.
01:45
Let's see how can we do this question.
01:48
So first of all, for finding the initial and the final momentum, we need to understand the what is momentum.
01:54
So momentum of any object is represented by p and it is equals to mass of that object multiplied by the velocity by which it is moving.
02:09
So we can say that the momentum is equal to p which is equal to m into v.
02:15
Now here we can find the initial and the final momentum just putting the values...