Physics 271: Advanced Honors Physics I
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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