Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 15.3, Problem 8bTH
Two cars, P and Q, travel in the same direction on a long, straight section of highway. Car P passes car Q, and is adjacent to car Q at time
Suppose that car P and car Q is moving with constant speed but car Q is speeding up. At time
- , is the magnitude of the instantaneous velocity of car P greater than, less than, or equal to the magnitude of the instantaneous velocity of car Q? Explain.
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The record distance in the sport of throwing cowpats is 81.1 m. This record toss was set by Steve Urner of the United States in 1981. Assuming the initial launch angle was 45° and neglecting air resistance, determine (a) the initialspeed of the projectile and (b) the total time interval the projectile was in flight. (c) How would the answers change if the range were the same but the launch angle were greater than 45°? Explain.
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The record distance in the sport of throwing cowpats is81.1 m. This record toss was set by Steve Urner of the UnitedStates in 1981. Assuming the initial launch angle was 45°and neglecting air resistance, determine (a) the initial speedof the projectile and (b) the total time the projectile was inflight. (c) Qualitatively, how would the answers change if thelaunch angle were greater than 45°? Explain.
Chapter 15 Solutions
Tutorials in Introductory Physics
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