Additional force

A reaction force is a force that acts in the opposite direction to an action force. Friction is t...

Abstract · ( · ) and the reaction force constant κ( · ) are intrinsic and universal properties of...

Centripetal and centrifugal force

reaction force的用法和樣例：. 例句. For every action there's an equal and opposite reaction. 每一個作用力都會引起相等的...

When you push on an object, the object pushes back with an equal force. Think of a pile of books ...