AP Physics 1mediummcq1 pt
A 20 N force pushes perpendicular to a door at 0.80 m from the hinge, while a 30 N force pushes the same direction at 0.40 m. The net torque is
A.28 N·m
B.4.0 N·m
C.50 N·m
D.14 N·m
Explanation
Core Concept
τ = (20)(0.80) + (30)(0.40) = 16 + 12 = 28 N·m.
Correct Answer
A28 N·m
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