Force is an external agent that has the ability to change the state of rest or motion of a certain body. It has a magnitude as well as a direction. The Force can be measured using a spring balance. Force has different effects and here are some of them, Force can make a body that is at rest to move. It can stop a moving body or slow it down. It can accelerate the speed of a moving body. It can also change the direction of a moving body along with its shape and size.
The force (F) required to move an object of mass (m) with an acceleration (a) is given by the formula F = m x a. So, force = mass multiplied by acceleration.