Question

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What are the laws of motion with examples?​

Answer 1

NEWTON'S FIRST LAW – EXAMPLES

Example 1

Objects in motion stay in motion and objects at rest stay at rest unless acted upon by an outside force (unbalanced force).



A stationary object with no outside force will not move.



With no outside forces, a moving object will not stop.

Although Sir Isaac Newton did not have access to space stations, this first law can clearly be seen:



An astronaut who has their screwdriver knocked into space will see the screwdriver continue on at the same speed and direction forever. There are no forces acting on the screwdriver from friction. With no forces this object will never stop.

 

Example 2

Unless I am forced I do the same thing.

An object at rest stays at rest.

An object acted upon by balanced forces stays at rest.

An object acted upon by unbalanced forces changes speed and can change direction.

 

Example 3

Newton's first law is often referred to as the law of inertia – inertia is an object's tendency to resist changes in motion.

When a car brakes quickly, the passenger will be thrown forward because inertia (the tendency to remain unchanged) tries to keep the passenger moving.

 

Example 4

The first law explains why you go flying over the handlebars if your bike stops suddenly:

Things tend to keep doing whatever they were doing before.