COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 7, Problem 80QAP
To determine
The final speed of the first stone and the final direction of the second one if the sport of curling is quite popular in Canada, a curler slides a 19.1-kg stone so that it strikes a competitor's stationary stone at 6.40 m/s before moving at an angle of 120° from its initial direction, the competitor's stone moves off at 5.60 m/s?
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g) Two balls are dropped from the same height. Both balls bounce (perfectly elastic) when they hit theground. Ball A has half the mass of ball B. Which ball has a greater speed after the bounce?h) Two balls are thrown from the same initial height above the ground. Ball A is thrown straight down.Ball B is thrown straight up. Both balls have the same initial speed. Which ball has the larger speedwhen it hits the ground?i) Two identical balls roll down a frictionless track. The tracks are the same height from top to bottom.Track A is straight and track B is curved. If both balls are released from rest, which ball reaches thebottom with the larger speed?j) You see two identical freight trucks driving down the highway. In both cases, the trailer is bouncing upand down on its springs. Truck A is heavier than truck B. Which truck bounces with a higher frequency?
42. ● A 1200-kg car is moving at 20.0 m/s due north. A 1500-kg car is moving at
18.0 m/s due east. The two cars simultaneously approach an icy intersection
where, with no brakes or steering, they collide and stick together. Determine
the speed and direction of the combined two-car wreck immediately after the
collision. Example 8-7
The sport of curling is quite popular in Canada. A curler slides a 19.1-kg stone so that it strikes a competitor's identical
stationary stone at 6.10 m/s before moving at an angle of 60.0 counterclockwise from its initial direction. The competitors stone
moves off at 5.70 m/s.
Determine the final speed of the first stone vif-
1.15
m/s
Incorrect
Determine the final direction of the second stone as an angle a
relative to the first stone's initial direction of motion. Let
-60
counterclockwise from the first stone's initial direction define
the direction of positive angles.
Incorrect
Chapter 7 Solutions
COLLEGE PHYSICS
Ch. 7 - Prob. 1QAPCh. 7 - Prob. 2QAPCh. 7 - Prob. 3QAPCh. 7 - Prob. 4QAPCh. 7 - Prob. 5QAPCh. 7 - Prob. 6QAPCh. 7 - Prob. 7QAPCh. 7 - Prob. 8QAPCh. 7 - Prob. 9QAPCh. 7 - Prob. 10QAP
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