Question

A heavy bank-vault door is opened by the application of a force of 3.0 x 10 2 N directed perpendicular to the plane of the door at a distance of 0.80 m from the hinges. What is the torque?

Answer 1

Torque is 240 Nm

Step-by-step explanation:

We know the equation for torque

Torque = Force x Perpendicular distance

T = F x r

Here we need to find torque when a 3.0 x 10² N force is applied perpendicularly to the plane of the door at a distance of 0.80 m from the hinges..

That is

Force = 3.0 x 10² N

Perpendicular distance = 0.8 m

Substituting

Torque = Force x Perpendicular distance

Torque = 3.0 x 10² x 0.80

Torque = 240 Nm

Torque is 240 Nm