Ahigh-jumper, having just cleared the bar, lands on an air mattress and comes to rest. had she landed directly on the hard ground, her stopping time would have been much shorter. using the impulse-momentum theorem as your guide, determine which one of the following statements is correct. a. the air mattress exerts the same impulse, but a greater net average force, on the high-jumper than does the hard ground b. the air mattress exerts a greater impulse, and a greater net average force, on the high-jumper than does the hard ground c. the air mattress exerts a smaller impulse, and a smaller net average force, on the high-jumper than does the hard ground d. the air mattress exerts a greater impulse, but a smaller net average force, on the high-jumper than does the hard ground e. the air mattress exerts the same impulse, but a smaller net avg force, on the hj than hg
Answers: 3
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If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction
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You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?
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Ahigh-jumper, having just cleared the bar, lands on an air mattress and comes to rest. had she lande...
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