State and explain newton's first law with suitable examples.

A body in the state of rest will remain in the state of rest and a body in the state of motion will remain in the state of motion with the same velocity until an external force is applied to it. for example, a book resting on the table will remain at rest until it is moved. If a ball is moving, it will continue to move until air resistance and friction cause it to stop. Other examples:- a powerful locomotive that's pulling a long line of boxcars that were at rest require a great deal of force to move as they are very large and have higher inertia