A mechanic uses a spanner of length to loosen a nut by applying a constant force of
PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics
Problem
A mechanic uses a spanner of length 0.25m to loosen a nut by applying a constant force of 90N. The direction of the force can be varied in the plane of the spanner.
(a) Find the angle between the applied force and the spanner at which the torque on the nut becomes maximum.
(b) Calculate the maximum torque obtained.
(c) Determine the torque when the same force is applied at an angle of 60∘ to the spanner and express it as a percentage of the maximum value found in part (b).