Question

How much moment (or torque) is produced about point o by the wrench in the situation below? a. 163 in-lb counterclockwise b. 163 in-lb clockwise c. 82.7 in-lb clockwise?

Answer 1

The net torque will be calculated by taking clockwise moment

as positive . When we use the sign convention, we get the net torque as 82.7 lbs because the two opposite ones become null.

Net torque =82.7 lb

Answer 2

Answer:

163 in-lb Clockwise

Step-by-step explanation:

Taking Moment about O

We can see that F is at an angle so We will make its X and Y components:

Fx = F sin30

Fy = F cos 30

you should know why Used cos component With x and Sin with Y component:

so Fx = 20(sin30) = 10 lb

Fy = 20(cos 30) = 17.32lb

taking Monment about O

∑MO=?

we will take  clockwise as positive

= - Fx(1in) + Fy(10in )

= -10(1) + 17.32(10)

= 163.32 in-lb

now if we can visualize we cansee that 163 lb force is acting downward which will rotate the wrench in clockwise Direction.