Reference no: EM131002943
1. A man is dragging a trunk up the loading ramp of a mover's truck. The ramp has a slope angle of 20.0o and the man pulls upward with a force F→ of magnitude 380N whose direction makes an angle of 30.0o with the ramp.
Part A. Find the horizontal component of the force F→ . Your answer should be positive if the force is to the right, negative if the force is to the left. Find the vertical component of the force F→ . Your answer should be positive if the force is upward, negative if the force is downward.
2. A dock worker applies a constant horizontal force of 77.0N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 11.0m in the first 6.00s .
part A. What is the mass of the block of ice?
3. The upward normal force exerted by the floor is 700N on an elevator passenger who weighs 740N.
Part A. What is the reaction force to the upward normal force exerted by the floor?
Part B. What is the reaction force to weight of the passenger?
4. The driver of a 1710kg car traveling on a horizontal road at 116km/h suddenly applies the brakes. Due to a slippery pavement, the friction of the road on the tires of the car, which is what slows down the car, is 26.0% of the weight of the car.
Part A. What is the acceleration of the car? Give your answer as the magnitude of the acceleration.
part B. How many meters does it travel before stopping under these conditions?
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: The upward normal force exerted by the floor is 700N on an elevator passenger who weighs 740N. What is the reaction force to the upward normal force exerted by the floor? What is the reaction force to weight of the passenger?
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