Question

A force Fx acts on a particle.The force is related to the position of the particle by the formula Fx=Cx3,where C is a constant.Find the work done by this force on the particle when the particle moves from x=1.5m to x=3m.

Answer 1

In physics, a force is any interaction that, when unopposed, will change the motion of an object.[1] A force can cause an object with mass to change its velocity (which includes to begin moving from a state of rest), i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. It is measured in the SI unit of newtons and represented by the symbol F.