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A box with a mass of 56.5 kg is placed on a ramp that is inclined at 27.3° from the horizontal. The coefficient of static friction is 0.565 and the coefficient of kinetic friction is 0.325. a. Determine the acceleration of the box the moment it is placed on the ramp. b. In order for the box to just start moving up the ramp, what force must be applied and in what direction? c. In order for the box to move up the ramp with a constant velocity, what force must be applied and in what direction? d. In order for the box to move down the ramp with a constant velocity, what force must be applied and in what direction?

A box with a mass of 56.5 kg is placed on a ramp that is inclined at 27.3° from the horizontal. The coefficient of static friction is 0.565 and the coefficient of kinetic friction is 0.325. a. Determine the acceleration of the box the moment it is placed on the ramp. b. In order for the box to just start moving up the ramp, what force must be applied and in what direction? c. In order for the box to move up the ramp with a constant velocity, what force must be applied and in what direction? d. In order for the box to move down the ramp with a constant velocity, what force must be applied and in what direction?

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A box with a mass of 56.5 kg is placed on a ramp that is inclined at 27.3° from the horizontal. The coefficient of static friction is 0.565 and the coefficient of kinetic friction is 0.325. a. Determine the acceleration of the box the moment it is placed on the ramp. b. In order for the box to just start moving up the ramp, what force must be applied and in what direction? c. In order for the box to move up the ramp with a constant velocity, what force must be applied and in what direction? d. In order for the box to move down the ramp with a constant velocity, what force must be applied and in what direction?
Transcribed Image Text:A box with a mass of 56.5 kg is placed on a ramp that is inclined at 27.3° from the horizontal. The coefficient of static friction is 0.565 and the coefficient of kinetic friction is 0.325. a. Determine the acceleration of the box the moment it is placed on the ramp. b. In order for the box to just start moving up the ramp, what force must be applied and in what direction? c. In order for the box to move up the ramp with a constant velocity, what force must be applied and in what direction? d. In order for the box to move down the ramp with a constant velocity, what force must be applied and in what direction?
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