Question

information about used gadgets or devices which based on newtons lows of motion

Answer 1

Hey there,

NEWTON'S 1st LAW OF MOTION-A body prefers to remain in state of rest or state of motion unless and until an external force is applied to it.

EXAMPLE-
⇒A ball rolling on a friction less table would continue to roll unless an external force is applied to it.
⇒Air vehicles in space tends to move because no external force is applicable.

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NEWTON'S 2nd LAW OF MOTION-Rate of change of momentum is directly proportional to the applied force.

EXAMPLE-
⇒In cars, air begs minimize the injury or harm in case of an accident, which acts as external force.
⇒Jumping of a skateboard when a person jumps on it.
⇒Drawing back of hand to minimize an external force like a ball, a push by someone, etc.

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NEWTON'S 3rd LAW OF MOTION-Every action has an equal and opposite reaction.

EXAMPLE-
⇒Recoil of gun when bullet is shot.
⇒Collision of two billiards ball. 
⇒Repulse in rocket due to back thrust.

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