What keeps you in your seat on a loop-de-loop roller coaster?

The force that keeps you in your seat on a loop-de-loop roller coaster is called centripetal force. Centripetal force is a force that acts on an object moving in a circular path, pulling it toward the center of the circle. In the case of a roller coaster, the centripetal force is provided by the track of the roller coaster. As the roller coaster moves along the track, the track exerts a force on the roller coaster, pulling it toward the center of the loop. This force is what keeps you in your seat.

The amount of centripetal force required to keep an object in a circular path depends on the mass of the object and the speed at which it is moving. The greater the mass of the object, the greater the centripetal force required. The faster the object is moving, the greater the centripetal force required.

In the case of a roller coaster, the centripetal force required to keep the roller coaster in the loop is very large. This is because the roller coaster is very massive and it is moving at a very high speed. The track of the roller coaster must be very strong in order to withstand the large centripetal forces that are exerted on it.

Centripetal force is an important concept in physics. It is used to explain a wide variety of phenomena, including the motion of planets around the sun, the motion of satellites around the Earth, and the motion of water in a whirlpool.