Two forces forming a couple are separated by a distance of 25cm. If one of the forces equals 40N, what is the moment of the couple?
-
A.
1000 Nm -
B.
500 Nm -
C.
10 Nm -
D.
5 Nm -
E.
1.6 Nm
Correct Answer: Option C
Explanation
The moment (or torque) of a couple is calculated by multiplying the size of one of the force by the perpendicular distance between the two forces.
Given: F = 40N; d = 25cm = 0.25m
Moment = 40 x 0.25 = 10Nm.