# SSC Test Questions If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same

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by sanjeetLuthra

2015-05-02T17:14:28+05:30
If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same momentum
2015-05-02T17:22:43+05:30

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U1 = 0        u2 =  0    initial speeds
let  m1  >=  m2

F = m1  a1  = m2 a2
The force acts on the two bodies for the same time duration Δt

Hence,  F * Δt = change in momentum
= final momentum,   as initial momentum = 0.

So the final momentum is same for both.  The body with higher mass will have less speed.