Physics Spring Final Study Guide - thecubscientist.com
Physics Spring Final Study Guide - thecubscientist.com
Physics Spring Final Study Guide - thecubscientist.com
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5. A railroad car of mass m is moving with speed v when it collides withand connects to a second railroad car of mass 3m, initially at rest, asshown below. How do the speed and kinetic energy of the connectedcars <strong>com</strong>pare to those of the single car of mass m before the collision?Speed Kinetic Energya. Less Lessb. Less The samec. The same Lessd. The same The samee. Greater The same6. Which of the following is true of the conservation of momentum andkinetic energy?a. Momentum is conserved only in inelastic collisionsb. Momentum is conserved only in elastic collisionsc. Kinetic energy is conserved only in inelastic collisionsd. Kinetic energy is conserved only in elastic collisionse. Both require the same conditions in order to be conserved<strong>Physics</strong> <strong>Spring</strong> <strong>Final</strong> Review <strong>Guide</strong>
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