Physics For Scientists And Engineers
6th Edition
ISBN: 9781429201247
Author: Paul A. Tipler, Gene Mosca
Publisher: W. H. Freeman
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Chapter 12, Problem 1P
(a)
To determine
Whether the given statement is true or false.
(a)
Expert Solution
Answer to Problem 1P
False.
Explanation of Solution
If an object is to be in equilibrium, the net force as well as net torque about any point must be zero. It is not sufficient that only net force is zero.
Conclusion:
Thus, the given statement is false.
(b)
To determine
Whether the given statement is true or false.
(b)
Expert Solution
Answer to Problem 1P
True
Explanation of Solution
If an object is to be in equilibrium, the net force as well as net torque about any point must be zero. It is not sufficient that only net force is zero but it is necessary that it is zero.
Conclusion:
The given statement is true.
(c)
To determine
Whether the given statement is true or false.
(c)
Expert Solution
Answer to Problem 1P
True
Explanation of Solution
If an object is to be in equilibrium, the net force as well as net torque about any point must be zero. This means
Conclusion:
The given statement is true.
(d)
To determine
Whether the given statement is true or false.
(d)
Expert Solution
Answer to Problem 1P
False
Explanation of Solution
If an object is to be in equilibrium, the net force as well as net torque about any point must be zero.
This does not mean that the object is at rest. It could be at rest or moving with constant velocity or rotating with constant angular speed.
Conclusion:
The given statement is false.
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Students have asked these similar questions
If the vector sum of torques acting on a system is zero, then the object is in _______.
A) static equilibrium
B) translatory equilibrium
C) linear equilibrium
D) rotational equilibrium
Which of the following is needed for a rigid body to be in equilibrium?
(A) It must be stable.
(B) The net torque on it must be zero.
(C)The net force acting on it must be zero.
(D)The net force and the net torque acting on it must be zero.
A person is standing on a section of uniform scaffolding as shown in the figure. The section of scaffolding is L = 1.50 m in length, has a ms = 24.5 kg mass and is supported by three ropes as shown. Determine the magnitude of the tension in each rope when a person with a weight of Wp = 640 N is a distance d = 0.700 m from the left end.
magnitude of
T1
N
magnitude of
T2
N
magnitude of
T3
N
Chapter 12 Solutions
Physics For Scientists And Engineers
Ch. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - Prob. 3PCh. 12 - Prob. 4PCh. 12 - Prob. 5PCh. 12 - Prob. 6PCh. 12 - Prob. 7PCh. 12 - Prob. 8PCh. 12 - Prob. 9PCh. 12 - Prob. 10P
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