Question

The figure below shows a graph of potential energy U(s) verses position x for a particle executing one dimensional motion along the x axis. The total mechanical energy of the system is indicated by the dashed line. At t=0 the particle is somewhere between points A and G. For later times choose the correct statement:-

A. The magnitude of force is maximum at `D`
B. The kinetic energy is maximum at `B`
C. The velocity is zero at `A` & `G`
D. The magnitude of force is minimum at `F`

Answer 1

Correct Answer - C
`F=-(dU)/(dx)` and `K+U=E`