Question

Explain the types of forces and give example of each these could be found operating.

Answer 1

A force moves or tends to move,stops or tends to stop the motion of object.The force can also change the direction of motion of an object.”It can also change the shape or size of a body on whiWhen a particle of mass m moves in a circular arc of radius r with uniform angular velocity ω,there is an acceleration rω² towards the center,so by Newton’s second law the resultant force on the particle,called the centripetal force,is mrω²,acting radially inward.In the system of Alembert there is a fictitious inertia force on the equal to this,supposelly acting radially outwards.Also an observer orbiting with the particle could introduce an inertial force that would be ,in this case,equal and opposite to the centripetal force.Both fictitious forces may be called centrifugal forces since they are directed away from the center .ch it acts.