Why we prefer to use a wrench with long arm ?
Why we prefer to use a wrench with long arm ?
Pratik Sharma , 16 Years ago
Grade 12
Mechanics> unknown...
1 AnswersAnurag 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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