Determine the coefficient of kinetic friction
A 22.0-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 78.5 N and is directed at an angle of 30.0° above the horizontal. Determine the coefficient of kinetic friction.
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A bug is splattered on a car windshield. Compare the magnitude of the windshield's force on the bug to the magnitude of the bug's force on the windshield.
A curve of radius 120 m is banked at an angle of 25o. If the coefficient of static friction between the road and the car is 0.40, what are the maximum and minimum speeds the car can have without skidding?
Assume that the free-fall acceleration is constant throughout and that the effects of the air can be ignored. What is the maximum height reached by the projectile?
At time a grinding wheel has an angular velocity of 27.0. It has a constant angular acceleration of 33.0 until a circuit breaker trips at time = 1.70. From then on, the wheel turns through an angle of 433 as it coasts to a stop at constant angular
The time it takes for the ball to fall halfway to the ground is 1.2 s. Find the time it takes for the ball to fall from rest all the way to the ground.
A 1.5-m tall woman stands 5.0-m in front of a camera with a 4.0-cm focal length lens. What is the size of the image formed on film?
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(a) Calculate the frequency of the damped oscillation. (b) By what percentage does the amplitude of the oscillation decrease in each cycle? (c) Find the time interval that ellapses while the energy of the system drops to 5.00% of it's initial val
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