Homework - 1/11/11

The ski jump has a vertical height of 110 m. If a skier starts at the top from rest, how fast will they be moving at the bottom of the jump?

Homework - 1/10/11

The Pitfall at Kennywood lifts riders to the top of the tower, 76 meters above the ground, and releases them from rest. Using the law of conservation of energy, determine the speed of the riders just before reaching the bottom. (For those of you that have actually been on the Pitfall, you may remember that you actually begin slowing down about two-thirds of the way down. Let's ignore the slowing and just assume that the riders stop at the very bottom.)

Remember: For full credit, you must fill the entire page. Draw a quick diagram of the situation and list the initial and final positions. List the givens, show all of your work, and circle the final answer. Also, explain whether your answers seem reasonable.