Q. A soccer ball of diameter 30 cm rolls without slipping at a linear speed of 2.7 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 16 m?
Q. A hydraulic lift has pistons with diameters 7.55 cm and 35.2 cm, respectively. If a force of 825 N is exerted at the input piston, what maximum mass can be lifted at the output piston?