Modified True or False
I. The moment of a force about an axis or line is the measure of its ability to produce turning or twisting about the axis.
II. The magnitude of the moment of a force about an axis which is perpendicular to a plane containing the line of action of the force is defined as the product of the force and its perpendicular distance from the axis to the line of action of the force.
Choose the answer from the choices below.
a. Only I is correct
b. I and II are correct
c. I and II are false
d. Only II is correct