Egbert applies a 20 lb force at the edge of a 4 ft wide door that is half-open in order
Chapter 1, Problem 34(choose chapter or problem)
Egbert applies a 20 lb force at the edge of a 4 ft wide door that is half-open in order to close it. (See Figure 1.67.) Assume that the direction of force is perpendicular to the plane of the doorway. What is the torque about the hinge on the door?
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