Physics for IGCSE & O level - The Earth In Space (Section 4 - No. 26)
State two conditions needed for an object to be in equilibrium.
Resultant force acting on the object is zero.
Object is moving in a constant speed.
Resultant moment acting on the object is zero.
Object is at a constant acceleration.
Explanation
An object is in equilibrium when the net force and the net torque acting on it are both zero.
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