Figure shows the variation of potential energy of a particle as a function of x, the x-coordinate of the region. It has been assumed that potential energy depends only on x. For all other values of x, U is zero, i.e., `xlarr10` and `xgt15`, `U=0`.

If the particle is isolated and its total mechanical energy is `60J`, then

Options

A. (a) The particle can be found anywhere from `-ooltxltoo`.
B. (b) The particle's maximum kinetic energy is `95J`.
C. (c) The particle's kinetic energy is not getting zero
D. (d) All of the above

Answer

D

Explanation

Here `E=60J` and as the system is isolated, the total mechanical energy remains conserved. It is clear from the give variation that U varies from `-35J` to `50J`. So, `K=E-U` will be from `10J` to `95J`.