List of top Physics Questions on Conservation of energy asked in AP EAPCET

A small disc of mass \(m\) slides down with initial velocity zero from the top \((A)\) of a smooth hill of height \(H\), having a horizontal portion \((BC)\) as shown in the figure. If the height of the horizontal portion of the hill is \(h\), then the maximum horizontal distance covered by the disc from the point \(D\) is

A person of mass 80 kg sits on a spring and compresses it by 2 m. If the person is projected at 20 m/s velocity by the spring, then the spring constant is (Take no energy loss):