Question

A particle is moving with the initial speed 72kmph and acceleration 'a'. If distance covered by particle in 2s is 100m,then find value of a.

Answer 1

Answer:

Explanation:u=72kmph=20m/s

s=ut+1/2at^2

100=20×2+1/2 a2^2

100=40+1/2×4a

100=40+2a

2a=100-40

a=60/2

a=30

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