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mestny [16]
3 years ago
13

A bicycle wheel is rotating with an angular velocity of 15 rad/s. The wheel has a mass of 4.9 kg and a radius of 48.6 cm. Treat

the wheel as a solid thin disc.
a. Calculate the rotational kinetic energy of the wheel in J.
b. Calculate the angular speed the wheel must have if its rotational kinetic energy is doubled, in rad/s.
Physics
1 answer:
riadik2000 [5.3K]3 years ago
3 0

Answer:

a) kinetic energy = 130.2j

b) angular velocity when kinetic energy is doubled = 21.2rad/s

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