A force is acting on a body moving alonog x-axis in the direction of motion
Channel: Doubtnut
Date: 26/07/2020

A force is acting on a body moving alonog x-axis in the direction of motion of the body. If this force produces a potential energy `u=Ax^(4),` where `A=1.2Jm^(-4),` then the what is the force acting on the body when the body is at `x=-0.8m`?