Problem: A force is applied to a door at an angle of 55.4° and 0.33 m from the hinge. (a) What force produces a torque with a magnitude of 2.12 N·m? (b) How large is the maximum torque this force can exert? Relevant Equations: T=Fd My Attempt I could do part a (force is 7.8 N), but I don't understand how to do part b. How do you determine maximum torque when you only have the force?