Explain why it's safer to stop a moving bike than a moving tuck using the definition of Newton's 1st Law, and inertia.

First, Newton's first law is; An object in motion will remain in motion unless acted on by an oblivious force.

Answer: forces don't always make things move: a bridge has lots of forces ... But once it's shooting through the air, the invisible force of gravity ... Once something is moving, you don't need a force to keep it moving: it ... He worked out three simple principles, called Newton's laws, that explain how this happens.