Question

a body start s from rest and falls freely under the action of gravity the velocity of the body after 4sec
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Answer 1

We know that second equation of motion is given by

S=ut+

2

1

gt

2

where S = distance, u = initial velocity = 0 , t = time , g = acc. due to gravity

⇒S=

2

1

gt

2

Since, u=0

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Answer 2

Explanation:

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