Questions
A particle of mass m with an initial velocity collides perfectly elastically with a mass 3m at rest. It moves with a velocity after collision, then, v is given by:
detailed solution
Correct option is D
Using momentum conservation, P→i = P→f ⇒m(ui^)+3m(0)=m(vj^)+3m(v'→) ⇒v'→=(u3)i^ −(v3)j^ Using energy conservation, 12mu2=12mv2+123m{(u3)2+(v3)2} ⇒u2=v2+u23+v23 ⇒2u23=4v23 ⇒v=u2Talk to our academic expert!
Similar Questions
A body of mass m moving with velocity v makes a head-on collision with another body of mass 2 m which is initially at rest. The loss of kinetic energy of the colliding body (mass m) is
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