InterviewSolution
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1. Clarify with suitable examples that momentum of an objectis a compound quantity relating mass and its velocity. |
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Answer» The amount ofmomentumthat anobjecthas isdependentupontwo variables: how much stuff is moving and how fast the stuff is moving.Momentum dependsupon thevariablesmass and velocity. In terms of an equation, themomentum of an objectis equal to the mass of theobject times the velocity of theobject. Consider a 0.5-kg physics cart loaded with one 0.5-kg brick and moving with a speed of 2.0 m/s. The total mass ofloadedcart is 1.0 kg and its momentum is 2.0 kg•m/s. If the cart was instead loaded with three 0.5-kg bricks, then the total mass of theloadedcart would be 2.0 kg and its momentum would be 4.0 kg•m/s. A doubling of the mass results in a doubling of the momentum. |
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