Is dropping an egg onto a hard tile floor
an example of an elastic or inelastic collision? Explain your answer.
Why is more impulse delivered during a
collision when bouncing occurs than during one in which it doesn’t?
In terms of momentum conservation, why
does a shotgun recoil when fired? (You can explain this in words, but an
answer involving the equation might be more succinct).
If a skater with a mass of 70 kg runs up
at 4 m/s to a 2 kg skateboard resting on the ground, what will be the resulting
speed of the skater on the board when he jumps on it.
If you punch a piece of sheetrock, why
doesn’t your hand bounce back? What has become of the energy in the
Why is it that if a bug flies into the
side of a resting car, the bug stops, but when the car runs into the bug,
it keeps moving with a spot on its windshield?
Why would you want a large guy to play
defense on your football team? (Explain in terms of momentum.)
An astronaut with a mass of 80kg is stranded in space several meters from his space ship. He is floating motionless and has in his hand a 5 kg wrench.
What is the total momentum of the astronaut
and wrench while floating there?
If he throws the wrench, what will be the
total momentum of him and the wrench as they move away from one another?
In order to get back to the ship, in what
direction must he throw the wrench?
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