Lesson_3.3_Homework

# Lesson_3.3_Homework - Lesson 12 Homework 1. After jumping...

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Lesson 12 Homework 1. After jumping vertically upward to make a slam dunk, a 70-kg basketball player is essentially in free fall as he returns to the floor. If he falls through a distance of 1.5 m, what is his rate of change of momentum as he returns to the floor? 2. If you are riding in a car traveling at 72 kmh -1 , what is your momentum relative to (i) the ground? (ii) the car? 3. A 6.0-g bullet traveling at 200 ms -1 strikes a bullet proof vest and comes to a stop in 500 µ s. What is the average force exerted by the bullet on the vest? 4. A 10-g bullet fired into a block of clay with a velocity of 250 ms -1 comes to rest uniformly in traveling a distance of 15 cm. What is the average force exerted by the bullet on the clay? 5. If a 0.32-kg ball is dropped from a height of 8.0 m, what is the momentum of the ball (i) 0.8 s after dropping and (ii) just before it hits the ground? 6. A small object of mass m slides down a wedge of mass 2m and exits smoothly onto a frictionless table. If the object is initially at a height h

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## This note was uploaded on 05/01/2011 for the course PHY 2048 taught by Professor George during the Fall '10 term at Edison State College.

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Lesson_3.3_Homework - Lesson 12 Homework 1. After jumping...

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