a body of mass 4 kg moving with a velocity of 9 metre per second collides directly with a body of 1 kg at the co efficient of restitution is 0.33 after collision the velocity of the body of 4 kg is
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Answer:
v=7.2m/s
Explanation:
as because coefficient of restitution is 0<e<1 so it's inelastic collision.
therefore by the law of conservation of momentum v=m1u1÷m1+m2
v= 4×9÷(1+4)
v=36/5= 7.2m/sec
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