Grade 12Mechanics
Why we prefer to use a wrench with long arm ?
Why we prefer to use a wrench with long arm ?
1 Answer
Anurag Kishore
As one knows
TORQUE = R cross F
=> F = torque/R
As torque required to open a nut is constant. So F is inversely proportional to R.
Hence if load arm is long we require less force to open.
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