Problem 29P

At the surface of a certain planet, the gravitational acceleration g has a magnitude of 12.0 m/s2. A 21.0-kg brass ball is transported to this planet. What is (a) the mass of the brass ball on the Earth and on the planet, and (b) the weight of the brass ball on the Earth and on the planet?

Solution 29P M is mass of the rim R is radius of the rim =d/2 = 0.65 m/2 = 0.325 m I is moment of inertia of bicycle=0.19 kg/m 2 M = I/R 2 M = (0.19 kg/m )/(0.325 m 2 M = 1.8 kg