Lesson: Distinguishing Weight from Other Forces

A car has a mass of 460 kg. The weight of the car is evenly supported by its four identical wheels. What force does each wheel apply to the ground?

An astronaut who has a mass of 80 kg is in a space station that orbits Earth in free fall. The astronaut is floating in a room of the space station, touching a wall that is perpendicular to Earth’s surface with her hand. She pushes against the wall with a force of 20 N. What is her acceleration perpendicular to the wall?

What is the child’s weight?

What is the average force applied to the ground by the child’s feet during the landing?