True or False: 1. When a baseball player hits a home run, the baseball receives

Question

True or False:

1. When a baseball player hits a home run, the baseball receives agreater impulse from the bat than the bat does from the ball.

2. In a collision between a light hydrogen molecule and a heavywater molecule, the momentum lost by one molecule is exactly thesame as the momentum gained by the other molecule.

3. A ball of clay is thrown against a wall and sticks there. Inthis process, momentum is not conserved because the clay stopsmoving.

4. As a tile falls from the roof of a building to the ground itsmomentum is conserved.

5. A rubber ball moving horizontally at 8.50 m/s hits a brick walland bounces back with exactly the same speed but in the oppositedirection. During this collision, its change in momentum iszero.

6. In a ballistics test, a bullet traveling horizontally strikesand embeds itself in a large block which is free to move. Duringthis process, the bullet transfers all of its momentum to theblock.

7. A shell explodes into two fragments, one 25 times heavier thanthe other. The momentum change of the lighter fragment is 25 timesas great as the momentum change of the heavier fragment.
8. You are standing on a skateboard, initially at rest. A friendthrows a very heavy ball towards you. You can either catch theobject or deflect the object back towards your friend (such that itmoves away from you with the same speed as it was originallythrown). What should you do in order to minimize your speed on theskateboard?
(a) catch the ball       
(b) deflect the ball     
(c) final speed on the skateboard will be the same regardlesswhether you catch the ball or deflect the ball.

Explanation / Answer

1.false

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