Question

When an object is in equilibrium state, then

• A. It must be at rest
• B. No force is acting on it
• C. It's net acceleration must be zero
• D. All of these

Answer 1

The correct option is C It's net acceleration must be zero

When an object is in equilibrium, the net force on the object is zero. But it does not mean that no force is acting on the object. Since the net force is zero the net acceleration is also zero.