Paul G.Hewitt - Conceptual Physics 10e

1
Ask a friend to drive a small nail into a piece of wood placed on top of a pile of books on your head. Why doesn't this hurt you?
2
Grandma is interested in your educational progress. Like most grandmothers, she likely has little science background and may be mathematically challenged. Write a letter to Grandma, without using equations, and explain to her the difference between velocity and acceleration. Tell her why some of your classmates confuse the two, and state some examples that clear up the confusion

3
Stand flatfooted next to a wall and make a mark at the highest point you can reach. Then jump vertically and mark this highest point. The distance between the marks is your vertical jumping distance. Use this to calculate your hang time.