497. assignment (forces equilibrium)
Two adults and a child want to push a wheeled cart in the direction marked x in the figure (Figure 1) . The two adults push with horizontal forces F1? and F2? as shown in the figure.
Part A: Find the magnitude of the smallest force that the child should exert. You can ignore the effects of friction.
Part B: Find the angle that the force makes with the +x-direction. Take angles measured counterclockwise from the +x-direction to be positive.
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