Homework Help: Physics

Posted by Kate on Saturday, June 9, 2012 at 11:16am.

Bob and Ray push on a door from opposite sides. They both push perpendicular to the door. Bob pushes 0.63 m from the door hinge with a force of 89 N. Ray pushes 0.57 m from the door hinge with a force of 98 N, in a manner that tends to turn the door in a clockwise direction. What is the net torque on the door?

I put 2.46n.m and got this wrong can someone please help me!

Physics - Elena, Saturday, June 9, 2012 at 4:55pm
τ = 89•0.63 -98•0.57 =
=56.7-55.86 = 0.84 N•m (anticlockwise)

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