Question

Answer #6 by showing ALL your work. Make sure to put units in each step. Don’t forget to circle the answer. Be sure that I can see al the work and it’s not cut off when the picture is uploaded.

6. (10 points) (a) Explain, in terms of impulse, why an egg thrown against a wall will break, while an egg thrown against a loose vertical sheet will not they land? (c) Experienced hikers prefer to step over a fallen log in their path rather than stepping on portant for paratroopers to bend their knees or even to drop and roll when top and jumping down on the other side. Exp (d) Wh (e) Explain why "following through" is so important to (e) Explain why foloswimb a mountain via a zigzag trail rather than to climb straight up? (f) What does it mean to "roll with the punches"? How does this work? (8) A truck weighs twice as much as a car, and is moving at twice the speed of the car. Ho does the truck's kinetic energy compare to that of the car? (h) Is it possible for a system to have negative potential energy? (i) . A baseball of mass m is thrown with a velocity v. When the same baseball is thrown again, its kinetic energy is twice what it was on the first pitch. How does the momentum the second pitch compare to that of the first pitch?

Answer 1