A bag of sand of mass M is resting on a frictionless horizontal surface. If a bullet of mass M/a is fired at it with a velocity v. Calculate the velocity(V) of the bag if the bullet comes to rest inside the bag.

Dear student,

applying law of conservation of momentumInitial momentum = Final momentumM×0 +Ma×v =(M+Ma)×VMva=M(1+a)VaV=v1+a


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