Same chapter1 markDifficulty: Easy
A spanner is used to loosen a nut. The turning effect is greatest when the force is applied:
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2 marksDifficulty: Easy
What is a couple? State one example from everyday life.
Original Khojo Papers practice question — not from a past board paper.
Answer
A couple is a pair of equal and opposite parallel forces whose lines of action are not the same. It produces rotation without translation. Turning a water tap or a steering wheel with both hands applies a couple.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The moment of a couple equals one force multiplied by the perpendicular distance between the two forces.
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