大家好,歡迎來到Yogi霸霸解題給你看,今天我要講解的是AP Physics C裡Rotation的作業。

Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 200π rad/s. One such flywheel is a solid, uniform cylinder with a mass of 460 kg and a radius of 1.5 m.

(a)What is the kinetic energy of the flywheel after charging

(b)If the truck operates with an average power requirement of 6.0 kW, for how many minutes can it operate between chargings?