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.
In Figure (a), a 4.8 kg dog stands on a 16 kg flatboat at a distance D-9.2 m from the shore. He walks 1.9 m along the boat toward shore
and then stops. Assuming no friction between the boat and the water, find how far the dog is then from the shore. (Hint: See Figure (b).
The dog moves leftward and the boat moves rightward, but does the center of mass of the boat + dog system move?)
Number
M
Units
(a)
Dog's displacement d
Boat's displacement de
Chapter 5 Solutions
Physics for Scientists and Engineers
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