For the potential energy curve shown shown in figure. (a) Find directions of force at points A, B, C,D and E. (b) Find positions of stable, unstable and neutral equilibriums.

For the potential energy curve shown shown in figure. (a) Find direc

1.	For the potential energy curve shown shown in figure. (a) Find directions of force at points A, B, C,D and E. (b) Find positions of stable, unstable and neutral equilibriums.
Answer» Solution :(a) `F = - (dU)/(DR)`or `-(dU)/(dx) = -("SLOPE of U-x graph")` (b) At point `x =2M`, POTENTIAL energy is minimum So. It is stable equilibrium positions. At `x = 2m`, potential energy is maximum. So, it is unstable equilibrium position. Tere is no point, where potential energy is constant. So, we don't have any point of unstable equilibrium position.