Q7.18Multiple choice
A uniform sphere of mass m and radius R is placed on a rough horizontal surface (Fig. 7.9). The sphere is struck horizontally at a height h from the floor. Match the following: (a) h = R/2
This question refers to a figure in the original PDF.
- (i)Sphere rolls without slipping with a constant velocity and no loss of energy. (b) h = R
- (ii)Sphere spins clockwise, loses energy by friction. (c) h = 3R/2
- (iii)Sphere spins anti-clockwise, loses energy by friction. Fig. 7.9 (d) h = 7R/5
- (iv)Sphere has only a translational motion, looses energy by friction.