the force required to maintain an object at a constant velocity in free space is equal to: b: the mass of the object.

c: the force required to stop it.
d zero

d zero

The correct answer is d: zero.

According to Newton's first law of motion, an object will stay at a constant velocity (including being motionless) unless acted upon by an external force. Therefore, if an object is already moving at a constant velocity in free space, no additional force is required to maintain that motion.

The correct answer is d) zero. The force required to maintain an object at a constant velocity in free space is zero.

Explanation:
This concept is based on Newton's first law of motion, also known as the law of inertia. According to this law, an object will continue to move at a constant velocity (including being at rest) unless acted upon by an external force.

In the case of an object moving in free space without any external forces acting on it, such as friction or gravitational forces, there is no need for a force to maintain its velocity. Once the object is set in motion or brought to a certain velocity, it will continue to move with that velocity indefinitely until another force acts upon it.

Therefore, the force required to maintain the object at a constant velocity in free space is zero.

The question is silly. Free space has gravity. Gravity changes velocity of things. There is no right answer.

Mark this one up to bad question making.