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Question

A body starts from rest and moving with an acceleration 2 ms2. The velocity of the body when it covers a distance of 10 m (in ms1) is

A
98
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B
40
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C
20
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D
12
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Solution

The correct option is B 40
As we know that
v2u2=2as
Here, u=0, v=?, a=2 ms2, s=10 m
v20=2×2×10
v2=40
v=40 ms1

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