A bomb at rest breaks into two unequal fragments, P and Q

PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

A bomb at rest breaks into two unequal fragments, P and Q. Fragment P is observed to move eastward while Q moves westward with equal magnitudes of momentum. Which inference is correct? (a) Masses of P and Q are equal while their speeds differ.\text{Masses of P and Q are equal while their speeds differ.} (b) Neither the masses nor the speeds of P and Q can be determined from the information given.\text{Neither the masses nor the speeds of P and Q can be determined from the information given.} (c) The fragment with the larger mass moves with the smaller speed so that mPvP=mQvQ\text{The fragment with the larger mass moves with the smaller speed so that }m_P v_P = m_Q v_Q (d) The heavier fragment must move faster than the lighter one to keep the momenta equal.\text{The heavier fragment must move faster than the lighter one to keep the momenta equal.}

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