1. A rocket moves through empty space in a straight line with constant speed. It
ID: 1792468 • Letter: 1
Question
1. A rocket moves through empty space in a straight line with constant speed. It is far from the gravitational effect of any star or planet (or anything else). Under these conditions, the force that must be applied to the rocket in order to sustain its motion is A. equal to its weight. B. dependent on how fast it is moving. C. equal to its mass. D. zero. 2. A small monkey is sliding down a vine toward the ground. As he slides faster, he becomes frightened and grab harder on the vine, increasing the tension in the vine. As soon as the tension in the vine becomes equal to the monkey's weight A. the monkey will stop B. the monkey will slow down C. the monkey will continue at constant velocity D. the vine will break 3. A small bicycle and a large truck hit head-on (no one is hurt). In this encounter: A. The truck experienced greater force and greater acceleration B. The bicycle experienced greater force and greater acceleration. C. The truck experienced greater force but smaller acceleration. D. The bicycle experienced greater force but smaller acceleration. E. They both experienced the same force, but the bicycle had the greater acceleration. F. The truck experienced the greater force, but both had the same acceleration. G. None of the above 4. Suppose you were transported to the mythical planet Vulcan, which is twice as massive as Earth and has twice the diameter. Your Vulcan weight as compared to your Earth weight would be A. twice as much B. half as much C. four times as much D. the same 5. A boy and a girl are riding on a merry-go-round, which is turning at a constant rate. The boy is nea the outer edge, and the girl is closer to the center. Who has the greater rotational velocity? . the boy B. the girl C. they have the same D. both have zero velocityExplanation / Answer
(1) Zero force should be applied to the rocket.
(2) The monkey will continue at a constant velocity.
(3) Both cycle and the truck experience the same amount of force, but the bicycle had the greater acceleration.
(4) The acceleration on the planet will be four times than that on Earth.
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