If the steel disk has a mass of 200 kg, a radius of 2 meters, and a smooth low-friction bearing at its center you can make it spin by applying a force to the rim. This torque increases the angular momentum of the disk. Suppose the force is 100 newtons. a. What mass could you pick up with a force of 100 newtons? That will give you a sense of how much force this really is. b. How long would you have to apply this force it to get the wheel spinning 2 times a minute? c. What would happen to the rate of spin if you then jumped on the rim of the wheel with your mass of 75 kg?
If the steel disk has a mass of 200 kg, a radius of 2 meters, and a smooth low-friction bearing at its center you can make it spin by applying a force to the rim. This torque increases the angular momentum of the disk. Suppose the force is 100 newtons. a. What mass could you pick up with a force of 100 newtons? That will give you a sense of how much force this really is. b. How long would you have to apply this force it to get the wheel spinning 2 times a minute? c. What would happen to the rate of spin if you then jumped on the rim of the wheel with your mass of 75 kg?
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter10: Fixed-axis Rotation
Section: Chapter Questions
Problem 85P: Suppose you exert a force of 180 N tangential to a 0.280-m-radius, 75.0-kg grindstone (a solid...
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If the steel disk has a mass of 200 kg, a radius of 2 meters, and a smooth low-friction bearing at its center you can make it spin by applying a force to the rim. This torque increases the
a. What mass could you pick up with a force of 100 newtons? That will give you a sense of how much force this really is.
b. How long would you have to apply this force it to get the wheel spinning 2 times a minute?
c. What would happen to the rate of spin if you then jumped on the rim of the wheel with your mass of 75 kg?
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