Question

Give me a divices are based on laws of motion

Answer 1

Answer:

The first law states that if the net force (the vector sum of all forces acting on an object) is zero, then the velocity of the object is constant. ... An object that is at rest will stay at rest unless a force acts upon it. An object that is in motion will not change its velocity unless a force acts upon it.

Answer 2

A body is said to be in motion if it changes its position with respect to surrounding.

FOR EXAMPLE

a man walking on the road walking on the road is in motion with respect to other objects nearby like trees.