2. A 163 g hockey puck with an initial speed of 2.50 m/s is moving along the ice when a constant force of 93.0 N is applied in the same direction of the hockey puck's motion. Over what distance is the force
applied if the hockey puck's speed increases to 17.8 m/s?

The air in an automobile tire with a volume of 2.60 ft3 is at 70°f and 21 psig. determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. the gas constant of air is ru = 53.34ft⋅lbflbm⋅r(1 psia144 lbf/ft2) = 0.3704 psia⋅ft3lbm⋅r the amount of air that must be added to raise the pressure is lbm