One way to store energy is in the rotational motion of a flywheel, and some have proposed
Question:
One way to store energy is in the rotational motion of a flywheel, and some have proposed using such technology to power automobiles. One unit is based on a 6.0-kg flywheel in the shape of a hoop of radius 0.10 m that spins as fast as 60,000 rpm.
(a) How much kinetic energy is stored by the flywheel when it is rotating at its maximum rate?
(b) If the vehicle requires an average power of 11 kW under normal driving conditions, for how much time can it operate with the energy stored in the flywheel?
Step by Step Answer:
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In this experiment, we will discuss Newton\'s second law of motion. In this experiment, we use a bucket that is filled with water and attach it to a rope that passes from the pulley. A person is pulling the rope down to lift the bucket filled with water. The question is how much time does a bucket take to fall on the ground when we leave the rope? A 2.0 kg bucket is attached to a massless string that is wrapped around a 1.0 kg, 4.0 cm diameter cylinder. The cylinder rotates on an axle through the center. The bucket is released from rest 1.0 m above the floor. How long does it take to reach the floor?
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