Question

a wrench is used to tighten a nut as shown in figure . A 1.2 N force is applied 7.0 cm from the axis of rotation. what is the magnitude of the torque due to the applied force

a) 0.58 Nm

b) 0.84 Nm

c) 1.71Nm

d) 8.4 Nm

e) 14Nm

Answer 1

Given:

Force, F = 1.2 N

Length of rotating arm = 7.0 cm = 0.07 m

Angle between rotating arm and line of action of force,

Now magnitude of torque is given by:

is the required torque

Seeing the given options, none of them seems to be correct, please cross check your given data and substitute them accordingly in the formulae.