After falling from rest at a height of 32.3 m, a 0.556 kg ball rebounds upward, reaching a height of 22.1 m. if the contact between ball and ground lasted 1.62 ms, what average force was exerted on the ball?

F = 15771.6 N

Explanation:

Initial velocity of ball just before it will collide is given as

now for final speed of rebound we have

now the average force is given as

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.