COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 7, Problem 6QAP
To determine
The two examples of total inelastic collision that occur in daily life.
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A skater is using very low friction rollerblades. A friend throws a Frisbee at her, on the straight line along which she is coasting. Describe each of the
following events as an elastic, an inelastic, or a perfectly inelastic collision between the skater and the Frisbee.
(a) She catches the Frisbee and holds it.
O elastic
O inelastic
O perfectly inelastic
(b) She tries to catch the Frisbee, but it bounces off her hands and falls to the ground in front of her.
medi
Opum
O elastic
O Inelastic
O perfectly inelastic
Mogy
(c) She catches the Frisbee and immediately throws it back with the same speed (relative to the ground) to her friend.
O elastic
O inelastic
er 3
O perfectly inelastic
Select the correct answer.
A fast car is out of control. Why
it safer to drive it
into a haystack instead of a concrete wall to stop?
the contact time and the force are
the impulse is increased
reduced
the cqntact time is extended and the
force n the car is reduced
O the velocity is increased
A 1055kg van, stopped at a traffic light, is hit directly in the rear by a 715kg car traveling with a velocity of 2.25 m/s. The car then moves 0.55 m/s. Assume that the transmission of the van is in neutral, the brakes are not being applied, and the collision is elastic. What is the final velocity of the van? (Provide an Illustration)
Chapter 7 Solutions
COLLEGE PHYSICS
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