2) A platform scale calibrated in Newtons is placed on the bed of a truck driven at constant speed of 14 m/s. A box weighing 500 N is placed on a scale. Find the reading on the scale if: a) The truck passes over the crest of a hill with a radius of curvature 100 m. b) The truck passes through the bottom of a dip with a radius of curvature 80 m.

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.