Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 5, Problem 114P
To determine
The velocity of center of mass of car-truck system.
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A 1250 kg automobile is at rest at a traffic signal. At the instant the light turns green, the automobile starts to move with a constant acceleration of 3.3 m/s2. At the same instant a 1800 kg truck, traveling at a constant speed of 9.4 m/s, overtakes and passes the automobile. (a) How far is the center of mass of the automobile-truck system from the traffic light at t = 3.2 s? (b) What is the speed of the center of mass of the automobile-truck system then?
A 1460-kg car is moving westward with a speed of 20.1 m/s, and a 2986-kg truck is traveling east with a speed of 17.5 m/s. Find the velocity of the center of mass of the car-truck system. Assume that the "positive" direction is to the east.
Two trucks drive directly away from oneanother on a straight line, . The trucksdrive with their speeds adjusted precisely so that the center ofmass (CM) of the two trucks remains stationary—that is, thevelocity of the center of mass is zero. The mass and speed of truck 1are m1 = 8400 kg and v1 = 12 m>s, respectively. The mass of truck2 is m2 = 10,200 kg. (a) Is the speed of truck 2 greater than, lessthan, or equal to the speed of truck 1? Explain. (b) Find the speedof truck 2.
Chapter 5 Solutions
Physics for Scientists and Engineers
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