Problem 5E

A boy reaches out of a window and tosses a ball straight up with a speed of 10 m/s. The ball is 20 m above the ground as he releases it. Use conservation of energy to find

a. The ball’s maximum height above the ground.

b. The ball’s speed as it passes the window on its way down.

c. The speed of impact on the ground.

Solution 40P

Step 1 of 5

The situation here is, a boy tosses up a ball from a window of known height from the ground. We need to determine the following:

- Maximum height reached by the ball from the ground.
- The velocity of the ball, as it crosses the window on its return.
- The velocity with which the ball impacts the ground.