Ablock on the end of a spring is pulled to position x 5 a and released from rest. in one full cycle of its motion, through what total distance does it travel

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader