posted by Bobby .
3. A person exerts a force of 55 N on the end of a door 74 cm wide. What is the magnitude of the torque if the force is exerted a)perpendicular to the door b)at a 45 degree angle to the door, c) at a 125 degree angle to the door?
d= 74cm (converted to M=0.74M)
Perpendicular is equal to 90 degrees, sin90 = 1.
Hope this will help :)