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Question

An object at rest starts moving at a uniform acceleration of 2 ms2. The distance travelled by it in 2 s is


A

2 m

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B

3 m

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C

4 m

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D

5 m

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Solution

The correct option is C

4 m


Given, acceleration a=2 ms2, initial velocity u=0 ms1 and time t=2 s.

Let distance travelled be s.

We use second equation of motion, s=ut+12at2.

So, s=0×2+122×22

On soving we get s=4 m

Therefore, distance travelled by it in 2 s is 4 m.


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