The potential energy function for a particle executing linear SHM is given by V(x) = (1/2)kx2 where k is the force constant of the oscillator (Fig. 6.2). For k = 0.5N/m, the graph of V(x) versus x is shown in the figure. A particle of total energy E turns back when it reaches m x = ±xm . If V and K indicate the P.E. and K.E., respectively of the particle at x = +xm, then which of the following is correct?
(a) V = O, K = E
(b) V = E, K = O
(c) V < E, K = O
(d) V = O, K < E.
