Question

a body starting with a velocity 'v' returns to its initial position after t sec with the same speed ,along the same line.acceleration of the particle is

Answer 1

It is given that a body starting with a velocity "v" returns to it's initial position after "t" seconds with the same speed, along the same line. Let the acceleration of particle be 'a'.

V = U + at
-v = v + at
at = -2v
a = -2v/t

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Answer 2

-2v / t is right answer....