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A body moves with initial velocity 10 m...

A body moves with initial velocity `10 ms^(-1)` , If it covers a distance of 20m in 2s then acceleration of the body is

A

zero

B

`10ms^(-2)`

C

`5ms^(-2)`

D

`2ms^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`S =ut + 1/2 at^2`
`rArr 20 = 10 xx 2 + 1/2 xx a xx 4`
`rArr a = 0`
This is uniform motion i.e. v = constant
`rArr a = 0`
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