7:4 Work and Kinetic Energy

Watch the following video then solve the question:

Question : Two industrial spies sliding an initially stationary 225 kg floor safe a displacement of magnitude 8.50 m, straight toward their truck.The push of spy 001 is 12.0 N, directed at an angle of 30.0° downward from the horizontal; the pull of spy 002 is 10.0 N, directed at 40.0° above the horizontal. The magnitudes and directions of these forces do not change as the safe moves, and the floor and safe make frictionless contact. What is the net work done on the safe by forces and during the displacement ?


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