Answer to Question #169423 in Mechanics | Relativity for Aman

Question

A particle moves under a force for which the potential energy is shown in the figure. It has a total energy of U_o. The particle cannot be found in the range

Answer 1

We know, Total Energy $U_o=K+P \text{ or } K=U_o-P$ and kinetic energy of particle can't be negative.

The object can not exists in the region, where its K.E. Would become negative. 

 In the region between x=0 and x=a, potential energy is zero. So, kinetic energy will be negative in

this region. Thus, the particle cannot be present in the region xgta.