What should be the magnitude of force F for the velocity of G to be constant?

constant velocity means zero acceleration

f = m a

f = m * 0

f = 0

To determine the magnitude of force F required for the velocity of object G to remain constant, we need to understand the concept of Newton's first law of motion, also known as the law of inertia.

According to Newton's first law, an object at rest or moving with a constant velocity will continue to do so unless acted upon by an external force. This means that the net force acting on an object must be zero in order for its velocity to be constant.

In the case of object G, if we want its velocity to be constant, the net force acting on it must be zero. Mathematically, this is expressed as:

ΣF = 0

Therefore, to make the velocity of object G constant, the magnitude of force F acting on it should be zero. This means that no external force should be applied to object G, allowing it to naturally move with a constant velocity or remain at rest if it is already stationary.

In summary, to achieve a constant velocity for object G, no external force is required (i.e., F = 0).