Newton's 3rd law states that for every action, there is an equal and opposite reaction. This means that when an object exerts a force on another object, the second object will exert an equal and opposite force back. On an inclined plane, this law applies because the force of gravity pulling the object down the slope is equal and opposite to the normal force exerted by the inclined plane on the object.
The angle of the inclined plane does not affect Newton's 3rd law. The law still applies regardless of the angle of the inclined plane. However, the angle does affect the components of the forces involved in the law, such as the weight and normal force, which can impact the motion of the object on the inclined plane.
Yes, an object on an inclined plane can be at rest if the forces acting on it are balanced. This means that the force of gravity pulling the object down the slope is equal to the normal force exerted by the inclined plane on the object. In this case, the object will not accelerate and will remain at rest.
The mass of an object on an inclined plane does not directly affect Newton's 3rd law. The law states that the forces are equal and opposite, regardless of the masses of the objects involved. However, the mass does affect the acceleration of the object, as stated by Newton's 2nd law (F=ma).
No, an object on an inclined plane cannot move without any external force acting on it. According to Newton's 1st law (law of inertia), an object will remain at rest or in motion with a constant velocity unless acted upon by an external force. The force of gravity and normal force from the inclined plane are not considered external forces in this scenario.