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April 21, 2014

Homework Help: Physics

Posted by Lisa on Wednesday, October 19, 2011 at 8:00pm.

Multiple choice.

The airbag in a car works in a collision by . . .
a. increasing the time of the impact to the person.
b. reducing the impulse to the person.
c. reducing the momentum of the person.
d. increasing the force on the person.


A cannonball shot from a cannon with a long barrel will have a greater muzzle velocity because the cannonball receives a greater . . .
a. force.
b. impulse.
c. both force and impulse.
d. neither force nor impulse.
.

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