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You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 690 N and that of your belongings is 940 N. (a) Determine the work done by the elevator in lifting you and your belongings up to the 6th floor (15.2 m) at a constant velocity. (b) How much work does the elevator do on you alone (without belongings) on the downward trip, which is also made at a constant velocity?A person pushes a 16.0kg shopping cart at a constant velocity for a distance of 22.0 m. She pushes it in the direction 30.0\" below the horizontal. A 43.0N frictional force opposes the motion of the cart. (3} Draw the freebody diagram showing the forces that act on the cart. lb} What is the magnitude of the force that the shopper exerts? Determine the work done by {c} the pushing force, {d} the frictional force, and {e} the gravitational force. Awaterskier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 60.7 kg waterskier has an initial speed of 5.6 mfs. Later, the speed increases to 11.5 mfs. Determine the work done by the net external force acting on the skier