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प्रश्न
Calculate the length of arm of couple, if a force of 13 N produces a moment of couple of 14.3 Nm.
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उत्तर
Moment of couple = Force × Arm of couple
14.3 Nm = 13 N × Arm of couple
Arm of couple = `14.3/13`
= 1.1 m.
संबंधित प्रश्न
A half metre rod is pivoted at the centre with two weights of 20gf and 12gf suspended at a perpendicular distance of 6 cm and 10 cm from the pivot respectively as shown below.
1) Which of the two forces acting on the rigid rod causes clockwise moment?
2) Is the rod in equilibrium?
3) The direction of 20 kgf force is reversed. What is the magnitude of the resultant moment of the forces on the rod?
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Assertion & Reasoning
- Assertion: The sum of the clockwise moments is equal to the sum of the anticlockwise moments.
- Reason: The principle of conservation of momentum is valid if the external force on the system is zero.
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