7. Friction, Inclines, Systems
Inclined Planes
7. Friction, Inclines, Systems
Inclined Planes
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- Multiple Choice
A 4.0-kg box sits on a frictionless inclined plane that makes a 21° angle with the horizontal. It is held in place by a cord parallel to the plane. Calculate the tension in the cord.
3026views40rank3comments - Multiple ChoiceA car is parked on a hill with a 5° slope. What is the magnitude of the friction force acting on the car?1556views
- Multiple ChoiceA 5.0-kg box slides on the surface of a ramp that rises at 37° above the horizontal. The coefficient of kinetic friction between the box and the surface of the ramp is 0.60. What is the magnitude of the acceleration of the box as it slides down the ramp?1300views
- Multiple Choice
A box and a solid disk, both of equal mass, are released from rest at the top of a frictionless inclined plane of length and angle . The box slides down without rolling, while the disk rolls without slipping. How much sooner does the box reach the bottom of the incline than the disk?
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