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A spinning wheel is brought in contact w...

A spinning wheel is brought in contact with an identical wheel spinning identical speed. The wheels slow down under the action of friction. Which of the following energies of the frist wheel decrease.

A

a) Kinetic

B

b) Total

C

c) Mechanical

D

d) Internal

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Knowledge Check

  • A wheel is rotating at the rate of 10 revolutions per second about an axis about which the radius of gyration is 0.2m. If the mass of the wheel is 5 kg then its rotational kinetic energy is

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