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When you fall from a really high place the air pushing you down is called gravity.
Now that he successfully landed on the moon he will jump toward earth !!,Where he will feel the presure of gravity, the air pushing him down to earth, his speed will increase extensively.
When you slam on the breaks to stop the car on a stop sign, you think your car stopped because of the breaks, which is partially wrong, because the surface like the road takes a huge role in stopping the car, Think about it, if stopped a car on a plainest surface your car will slip but the road is not exactly place it have little holes in it allowing the rubber to contact with it, so the car could stop.
! Stop ! ! Most Friction !
As you can see, this is not a cement, concrete road, this is a plain wooden built road, because it is plain the car would slip in you slam on the brakes, and it is raining which makes it more slippery because rubber have less grip on the pavement if wet.
! Stop ! ! Less friction !
The elastic rope we are holding is a stretch able rope because if we both go the opposite way it will stretch.
The two magnets you can see are so strong that a piece of armour is attached to it and the red star on the fridge is attached to the fridge because of the magnet. Magnet only sticks to iron, steel, and nickel.
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