If a moving object has no force acting on it.
Correct answer: B. Continue to move in a straight line at constant velocity
- A. It will decelerate and eventually stop
- B. Continue to move in a straight line at constant velocity
- C. It will stop immediately
- D. Its velocity will increase while moving in a straight line
Explanation
According to Newton's First Law of Motion, also known as the Law of Inertia, an object at rest will remain at rest, and an object in motion will continue to move with a constant velocity, unless acted upon by an external force. Since there is no force acting on the object, it will maintain its state of motion and continue to move in a straight line at a constant velocity.
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Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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