Asmall block of mass m is placed on an inclined plane. the inclined plane is then lifted at one end. the block will begin to slide at an angle θ when which becomes greater than the coefficient of sliding friction?

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel