A 10kg wheel of radius 0.5m is spinning at 3 revolutions per minute. How much is the torque required to stop the wheel within 5 seconds? Consider the wheel as a solid disc.
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A 10kg wheel of radius 0.5m is spinning at 3 revolutions per minute. How much is the torque required to stop the wheel within 5 seconds? Consider the wheel as a solid disc.
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- A pulley attached to the top of a ramp has a rope wrapped around it (like a spoon of thread). Treat the pulley like a solid cylinder. The rope is attached to a solid sphere at its axle. The axle turns without friction. The system is released from rest. The rope unwinds from the pulley and the sphere rolls without slipping down the hill. The mass of the pulley is 20.0kg and has a radius of 0.250m. The 8. sphere has a mass of 50.0kg and a radius of 0.500m. The ramp makes an angle of 40.0° with the horizontal. (Solve this problem using Force-Torque Principles.) What is the acceleration of the sphere? а. b. What are the angular accelerations of the pulley and the sphere?A merry-go-round accelerates from rest to 0.74 rad/s in 33 s. Assuming the merry-go-round is a uniform disk of radius 6.0 m and mass 3.10×104 kg, calculate the net torque required to accelerate it. Express your answer to two significant figures and include the appropriate units.A solid sphere with a radius of 0.41 and a mass 0.3 is set to rotate about its center. After a time of 14.6 s, its rotational kinetic is 28.7 J. What is its constant angular acceleration
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