Determine the maximum part weight in (Problem 23) if the coefficient of static friction is 0.85 and the maximum upward vertical acceleration is 5 feet per second squared. (A bellows gripper has a bellows geometry that includes a center rectangle 0.4 inch by 2.75 inches and semicircular ends, 25 psi of air are used). Problem 23 A bellows gripper has a bellows geometry that includes a center rectangle 0.4 inch by 2.75 inches and se-micircular ends. Calculate the holding force on a rectangular part when 25 psi of air are used.