There are three forces acting on the ruler. How many torques are acting on the ruler?

a$.$ One: From the fulcrum.

b$.$ two: One torque from the left hanging mass and one from the right hanging mass.

c$.$ Three: One from each of the hanging masses and one from the fulcrum.

QUESTION $5$

What is the net torque on the ruler and what observation supports your answer?

a$.$ The net torque since the ruler has no angular acceleration.

b$.$ The net torque is zero since the linear acceleration is zero.

c$.$ The net torqe is $9\mathrm{.}8$ m$/$s$2$ since you cannot escape gravity.