A coin is dropped from a height above the ground. Which three statements are correct? -If you double the height that you drop the coin from, you double the gravitational potential energy.
-You would have to drop it from a height that is nine times bigger to treble the speed when it hits the floor.
-If you double the height that you drop the coin from, you quadruple the gravitational potential energy.
-If you double the height that you drop a coin from, you double the speed at which it hits the floor.
-If you quadruple the height that you drop a coin from, you double the speed at which it hits the floor.