The following is in unstable equilibrium__________________?
A. a uniform solid cone resting on a generator on a smooth horizontal plane
B. a uniform solid cone resting on its base on a horizontal plane C. a solid cube resting on one edge (Correct)
D. a satellite encircling the earth
A particle is dropped from a height of 3 m on a horizontal floor, which has a coefficient of restitution with the ball of 1/2. The height to which the ball will rebound after striking the floor is____________________?