A cart of mass m is attached to a perfect spring and oscillates on a frictionless surface, as shown. The amplitude of the oscillation is given by x. The kinetic energy of the cart has a maximum value at(a) position A(b) position B(c) position C(d) positions A and C

A cart of mass m is attached to a perfect spring and oscillates on a frictionless surface as shown The amplitude of the oscillation is given by x The kinetic en class=