A chef pushes a 10kg pastry cart from rest a distance of 5 meters with a constant horizontal force of 10N. Assuming a frictionless surface, determine the cart’s change in KE and its final velocity.

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