Two forces each of 4 N act on the opposite side... - WAEC Physics 1990 Question
Two forces each of 4 N act on the opposite sides of a rectangular plate as shown in the diagram above. Calculate the magnitude of g the couple acting on the plate.
A
6.4 Nm
B
3.2 Nm
C
1.6 Nm
D
0.8 Nm
correct option: c
couple moment = F x d = 4 x 0.4 = 1.6Nm
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