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。

In the figure below, two particles, each with mass m = 0.89 kg, are fastened to each other, and to a rotation axis at O, by two thin rods, each with length d = 5.5 cm and mass M = 1.3 kg. The combination rotates around the rotation axis with angular speed ω = 0.32 rad/s.

(a)Measured about O, what is the combination’s rotational inertia?

(b)What is the combination’s kinetic energy?