A block of mass m = 2.50 kg is pushed d = 2.00 m along a frictionless horizontal table by a constant applied force of magnitude F = 17.0 N directed at an angle 8 = 25.0° below the horizontal as shown in the figure below. (a) Determine the work done by the applied force. (b) Determine the work done by the normal force exerted by the table. (c) Determine the work done by the force of gravity. (d) Determine the work done by the net force on the block.

A child pulls a wagon on level ground a distance of 4.24 mm  using a rope connected to the front of the wagon. Due to the relative heights of the child and the wagon, the rope is oriented at an angle of 31.5º from the horizontal. If the tension in the rope is 18.2 N, how much work does the child do in pulling the wagon over the stated distance?

A dock worker pushes a m = 3.20 kg block a distance d = 2.00 m along the floor by a constant force of magnitude F = 16.0 N directed at an angle 8 = 22.0° below the horizontal as shown in the figure. Assume the floor is frictionless. (Enter your answers in joules.) m (a) Determine the work done on the block by the applied force (the force on the block exerted by the dock worker). J (b) Determine the work done on the block by the normal force exerted by the floor. J (c) Determine the work done on the block by the gravitational force. J (d) Determine the work done by the net force on the ock. J

A 156-kg crate is being pushed across a horizontal floor by a force P that makes an angle of 29.1° below the horizontal. The coefficient of kinetic friction is 0.244. What should be the magnitude of P, so that the net work done by it and the kinetic frictional force is zero?