What is the total displacement in km.
what is displacement at t=18 hrs in km
what is the distance between points e and f in km.
what is the displacement between points e and f in km

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