According to the law of inertia, objects moving down an inclined plane ______.

Correct option is B

The correct answer is (b) accelerate.
According to the law of inertia (Newton’s First Law of Motion), an object will remain at rest or continue to move in a straight line with constant velocity unless acted upon by an external force. However, on an inclined plane, gravity causes a component of force to act along the plane, resulting in acceleration downwards. Objects moving down an inclined plane accelerate because the gravitational component along the incline causes an increase in velocity.
Information Booster: ● The acceleration on an inclined plane depends on the angle of inclination. ● Gravity is the primary force causing acceleration on inclined surfaces. ● Friction, if present, may reduce the rate of acceleration. ● The steeper the incline, the greater the component of gravitational force parallel to the surface. ● This scenario demonstrates Newton’s laws, particularly the effects of unbalanced forces.