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प्रश्न
Two equal and unlike parallel forces of magnitude 16 N act on a rigid body, such that moment of couple is 12 Nm. Calculate the arm of couple.
संख्यात्मक
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उत्तर
Moment of couple = 12 Nm
Force = 16 N
Moment of couple = Force × Arm of couple
∴ 12 Nm = 16 N × Arm of couple
∴ Arm of couple = `12/16` = 0.75 m
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