1. Which of these expressions is the rate of change of momentum?
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2. One of Newtons laws of motion states that the rate of change of momentum is equal to
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3. A firework rocket accelerates for the first few seconds and gains height above the ground. Which of the following best describes the energy changes taking place at this point?
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4. The graph shows the force required to stretch a steel cable. What work has been done stretching the cable by 12 cm?
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5. Momentum is defined as ..
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6. A small steel ball of mass m is fired at a solid wall at a speed v. It rebounds at a speed of v/2. The total momentum change is
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7. An inelastic collision is one in which..
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8. A 20g bullet hits a 40g stationary block of wood at 60 m/s and remains embedded in the wood. What is the final velocity of block and bullet?
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9. A 0.2kg tennis ball is hit at 20 m/s. Which answer gives the correct values for momentum and kinetic energy?
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10. Estimate the impulse on the tennis ball as it is struck using information from this graph.
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