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Physics 271: Advanced Honors Physics I
Recitation #8
Fall 2017

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7. (a) 2.8 x 10² N. Compute the torque around the point at which the ladder contacts the floor, since the force exerted on the ladder by the floor is not given (it will be determined next). Since the ladder is in equilibrium, set the torque to zero.
(b) 8.8 x 10² N
(c) 71 degrees

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