Under the action of a force `F=-kx^(3)` , the motion of a particle is (k=a positive constant)

The equation of motion of a particle executing SHM is (k is a positive constant)

A particle is moving in a circular path of radius r under the action of a force F. If at an instant velocity of particle is v, and speed of particle is increasing, then

A particle moves under force F =5(x -2)^(3) .Motion of the particle is

A particle moves under force F -5(x -2)^(3) .Motion of the particle is

A particle is placed at the origin and a force F = kx is acting on it (where k is a positive constant). If U (0) = 0, the graph of U(x) versus x will be (where U is the potential energy function)