(j) Two football teams, the Raiders and the 49ers are engaged in a tug-of-war. T
ID: 1489196 • Letter: #
Question
(j) Two football teams, the Raiders and the 49ers are engaged in a tug-of-war. The Raiders are pulling with a force of 5000N. Which of the following is an accurate statement?
A. The tension in the rope depends on whether or not the teams are in equilibrium.
B. The 49ers are pulling with a force of more than 5000N because of course they’d be winning.
C. The 49ers are pulling with a force of 5000N.
D. The tension in the rope is 10,000N.
E. None of these statements are true.
(k) A bunch of bananas hangs from the end of a rope that passes over a light frictionless pulley. A monkey of equal mass hangs on the other end of the rope and both are initially balanced and at rest. Now the monkey starts to climb p the rope, moving away from the ground with speed v. What happens to the bananas?
B. They remain stationary.
C. They move up at speed 1/2 v.
D. They move up at speed v.
E. They move up at speed 2v.
(l) The reason a space station designed for human habitation is rotated is
A. to provide artificial gravity.
B. to conserve energy.
C. to provide propulsion.
D. to provide a steady input of sunlight.
E. to generate electricity.
Explanation / Answer
(j)
C. The 49ers are pulling with a force of 5000N
(k)
C. They move up at speed 1/2 v.
(l)
C. to provide propulsion
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