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Solved: (a) Is it possible for an object to be in
Chapter 11, Problem 2DQ(choose chapter or problem)
Problem 2DQ
(a) Is it possible for an object to be in translational equilibrium (the first condition) but not in rotational equilibrium (the second condition)? Illustrate your answer with a simple example. (b) Can an object be in rotational equilibrium yet not in translational equilibrium? Justify your answer with a simple example.
Questions & Answers
QUESTION:
Problem 2DQ
(a) Is it possible for an object to be in translational equilibrium (the first condition) but not in rotational equilibrium (the second condition)? Illustrate your answer with a simple example. (b) Can an object be in rotational equilibrium yet not in translational equilibrium? Justify your answer with a simple example.
ANSWER:
Solution 2DQ
The first condition of equilibrium states that the net force on a body is zero. The second condition states that the the net torque on the body is zero.
(a) The body is said to be in translational equilibrium if it remains at rest. It has no tendency to accelerate as a whole. But the body may not be in rotational equilibrium if a net torque acts on it.
Let us have a look at the following figure.