Question

In the following lever system, what is the counter-clockwise torque?

6 Nm
300 Nm
1,200 Nm
1,800 Nm

Answer 1

B) 300Nm

I know its 300Nm because I had this on my usatestprep quiz

Answer 2

Hello!

The answer is: 300 N.m

Why?

Torque is equal to the product between the applied force and the distance from the pivot (where the lever is supported), we are given a lever system with 2 applied forces at different distances from the pivot, and we are asked to find what is the counter-clockwise torque, so:

The counter-clockwise torque is located at the left end of the lever, so:

`Torque=Force*Distance=300N*1m=300N.m`

So, the counter-clockwise torque is equal to 300 N.m.

Also, we can calculate the clockwise torque:

`Torque=Force*Distance=200N*6m=1200N.m`

Have a nice day!