Multiple Choice 8 1 A student pushes a textbook 1 0 m across

Last updated: 4/25/2023

Multiple Choice 8 1 A student pushes a textbook 1 0 m across the table using an applied force of 5 0 N against a force of kinetic friction of 2 0 N The net work done on the book is a 0 0 J b 5 0 J c 10 0 J d 3 0 J e 3 0 J 2 A ball is connected to a string as shown The ball moves downward from position A with a speed vo Traveling on a circular path the ball stops at position B What enables the ball to reach point B which is above point A Ignore friction and air resistance ANDIN a The work done by the gravitational force b The ball s initial kinetic energy c The work done by the tension in the string d The ball s initial gravitational potential energy a 2 3 105 A 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 a 0 0 J b 3 60 J c 1 6 J d 0 56 J e 0 13 J 2 35 105 J 2 35x105 J 0 0 J Vo 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