what is newton's 3rd law of motion
Newton's third law simply states that for every action there is an equal and opposite reaction. So, if object A acts a force upon object B, then object B will exert an opposite yet equal force upon object A.
What is normal force
The normal force is the force that surfaces exert to prevent solid objects from passing through each other. Normal force is a contact force.
what is newton's 2nd law of motion
the acceleration of an object is directly related to the net force and inversely related to its mass. Acceleration of an object depends on two things, force and mass.
what is newton's 1st law of motion
An object at rest remains at rest, or if in motion, remains in motion at a constant velocity unless acted on by a net external force