Statement I :A small block of mass m is projected with some speed from point A on a smooth vertical tube track of small diameter as shown in Fig. 8.210. The vertical heights of points B and C from point of projection are hB and hC such that hB=2h and hC=h. Then the minimum possible speed of the block at point C is √2gh (where g is acceleration due to gravity).
Statement II . The minimum speed of the block at point C in situation given in Statement I depends on hB−hC.