Question

Soni says that the acceleration in an object could be zero even when several forces are acting on it. Do you agree with her? Why?

Answer 1

Yes, it is possible for an object to have zero acceleration even when several forces are acting on it. This situation occurs when the forces acting on the object are balanced or cancel each other out.
According to Newton's second law of motion:
$F_{net}​=m⋅a$
If an object experiences multiple forces, the net force is the vector sum of all these forces. If the forces are such that their magnitudes and directions balance each other out, the net force becomes zero $(F_{net}​=0)$.
In this case, according to Newton's second law, the acceleration of the object will be zero $(a=0)$, even though there are forces acting on it. This scenario is often described as a state of equilibrium, where the object is either at rest or moving with a constant velocity.