How does inertia affect a person who is not wearing a seatbelt during a collision?

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?

The solid that is formed and usually sinks to the bottom of a solution is the