A cylindrical rod 24.0 cm long with mass 1.20 kg and radius 1.50 cm has a ball
Question:
(a) After the rod rotates through ninety degrees, what is its rotational kinetic energy?
(b) What is the angular speed of the rod and ball?
(c) What is the linear speed of the ball?
(d) How does this compare to the speed if the ball had fallen freely through the same distance of 28 cm?
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