Question

if a body is at rest. can we say that no force is acting on it ​

Answer 1

Answer: NO

Explanation:

Answer 2

Answer:

No

If a body is in at rest, resultant force is zero. If a body is moving with uniform velocity, still the resultant force is zero. These bodies will be in equilibrium. Similarly a rotating ceiling fan is in equilibrium as net torque acting on it is zero.

Explanation

Some physicists/teachers present the following two examples as bodies at rest but not in equilibrium:

1. Body at highest point when thrown upward against gravity.

2. Pendulum at its extremes.

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