For the analysis, we will use a moving reference frame attached to the rotating disk. Using this in Newton's 2nd law, we determine the contact force F acting on the particle. It is seen that the ...

Forces are responsible for all the interactions between particles and objects. They can be put into two categories: contact forces and non-contact forces. Forces can be added up as vectors.

Force is measured in newtons (N). Forces are divided into contact forces and non-contact forces. A force is a push or a pull that acts on an object due to the interaction with another object.