Question

select the correct answer. darryl throws a basketball at the gym floor. the ball bounces once on the floor and comes to rest in his coachs hands. at which point are all the forces on the basketball balanced? a. the moment the ball leaves darryls hand b. the moment the ball touches the floor c. when the ball is in the air d. when the ball starts falling downward before coming to rest e. the moment the ball comes to a complete rest

Explanation:

When an object is in equilibrium, the net force acting on it is zero, meaning the forces are balanced. A moving object like a basketball in motion (leaving hand, in - air, falling) has unbalanced forces due to gravity and air resistance. When it touches the floor, there is an impact force and the normal force which are not in balance during the bounce. Only when the ball comes to a complete rest, the gravitational force pulling it down is balanced by the normal force exerted by the surface (or the coach's hand) pushing it up.

Answer:

E. the moment the ball comes to a complete rest