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Unformatted text preview: Patel (pnp223) homework 20 Turner (92160) 1 This print-out should have 11 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 (part 1 of 3) 10.0 points A 12000 kg tank moving at 7 m / s is brought to a halt in 2 . 5 s by a reinforced-steel tank barrier. What impulse was imparted to the tank? Answer in units of kg m / s. 002 (part 2 of 3) 10.0 points What is the average net force exerted by the tank on the barrier? Answer in units of N. 003 (part 3 of 3) 10.0 points What is more important in determining the amount of damage an object sustains in a collision? 1. the total momentum change per unit time 2. None of these 3. the total momentum change 4. Both of these 004 (part 1 of 2) 10.0 points A 1 kg steel ball and 7 m cord of negligi- ble mass make up a simple pendulum that can pivot without friction about the point O ....
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