3 A smooth 0 16 kg hockey puck slides across a smooth gym floor experiences...
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Physics
3 A smooth 0 16 kg hockey puck slides across a smooth gym floor experiences a frictional force of 0 36 N and stops in a distance of 2 3 m Calculate the work done by the normal force that the floor exerts upward on the puck 0 0 J a b 3 60 J gravitational potential energy the string c 1 6 J d 0 56 J e 0 13 J 4 A 80 0 kg skydiver falls straight downward with an open parachute through a vertical height of 300 0 m The skydiver s velocity remains constant What is the work done by the non conservative force of air resistance which is the only non conservative force acting a 2 3 105 b 2 35x105 J c 2 35x105 J d 0 0 J
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