Which statement describes an object moving at constant velocity?

Which statement describes an object moving at constant velocity?

• A. Gravitational force depends directly on mass
• B. Force equals mass times acceleration
• C. An object traveling at constant velocity has no net force on it
• D. An object at rest tends to remain at rest

Answer: (C)

Constant velocity means the speed and direction aren’t changing, which requires zero acceleration. When there’s no net external force, acceleration is zero, so the velocity stays constant. That’s why an object moving at constant velocity has no net force on it—the statement mirrors this fundamental idea. Other statements describe different ideas: gravity depends on mass applies to gravitational force in general, not specifically to motion with constant velocity; F = m a is a general relation between force and acceleration, not a description of a constant-velocity situation; and an object at rest describes a zero-velocity case, which is a specific instance but doesn’t address motion at a constant nonzero velocity.

Constant velocity means the speed and direction aren’t changing, which requires zero acceleration. When there’s no net external force, acceleration is zero, so the velocity stays constant. That’s why an object moving at constant velocity has no net force on it—the statement mirrors this fundamental idea.

Other statements describe different ideas: gravity depends on mass applies to gravitational force in general, not specifically to motion with constant velocity; F = m a is a general relation between force and acceleration, not a description of a constant-velocity situation; and an object at rest describes a zero-velocity case, which is a specific instance but doesn’t address motion at a constant nonzero velocity.