# YOU DO WORK ON SOMETHING WHEN YOU LIFT IF AGAINST GRAVITY. EXPLAIN HOW WORK RELATES TO GRAVITATIONAL POTENTIAL ENERGY USING AT LEAST TWO COMPLETE CONTENT RELATED SENTENCES.IF THE LIFTED OBJECT IS RELEASED, DESCRIBE THE CHANGE IN ENERGY. BE SURE TO DEFINE ALL TERMS USED IN BOTH QUESTIONS.

### 1.YOU DO WORK ON SOMETHING WHEN YOU LIFT IF AGAINST GRAVITY. EXPLAIN HOW WORK RELATES TO GRAVITATIONAL POTENTIAL ENERGY USING AT LEAST TWO COMPLETE CONTENT RELATED SENTENCES.IF THE LIFTED OBJECT IS RELEASED, DESCRIBE THE CHANGE IN ENERGY. BE SURE TO DEFINE ALL TERMS USED IN BOTH QUESTIONS.

2.In terms of momentum change, explain why it is best to “give” when catching a baseball.Provide at least TWO other examples of situations in which you want “give”.

3.A boy fires a table tennis launcher. Briefly describe the forces and impulses on the launcher and the ball. Explain which has momentum.Explain which is moving faster.Be sure to use at least 3 to 4 complete content related sentences.

4.Suppose you are on an airplane moving at high speed.If you flip a coin straight up it will land in your lap rather than a great distance behind you.Explain why this is true and include any laws that help prove your point.Your answer should be at least 3 to 4 complete content related sentences.

5.What is terminal speed? When a skydiver has reached terminal speed, what is the are resistance equal to?What is the skydiver’s acceleration?Be sure to use at least 3 to 4 complete content related sentences.

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