Concept explainers
(a)
Whether the given statement is true or false.
(a)
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)
Whether the given statement is true or false.
(b)
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)
Whether the given statement is true or false.
(c)
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)
Whether the given statement is true or false.
(d)
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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Chapter 12 Solutions
Physics for Scientists and Engineers
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