Physics – 1.5.2 Turning effect of forces | e-Consult
1.5.2 Turning effect of forces (1 questions)
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Principle of Moments: For a lever to be in equilibrium, the clockwise moment must equal the counter-clockwise moment.
Moment = Force x Distance
Clockwise Moment = Counter-clockwise Moment
Therefore: F x 2.5 m = 250 N x 1.5 m
F = (250 N x 1.5 m) / 2.5 m
F = 150 N
Answer: The value of F required is 150 N.