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Question

A body has an initial velocity 5 ms−1. It is accelerating at 2 ms−2. It's velocity after 10 second is


A

20 ms−1

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B

25 ms−1

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C

15 ms−1

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D

10 ms−1

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Solution

The correct option is B

25 ms−1


Given, initial velocity u=5 ms−1, acceleration a=2 ms−2, time t=10 s and final velocity v

We know that a=v−ut

So, 2=v−510

20=v−5

v=25 ms−1


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