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प्रश्न
The mechanical advantage of a machine is 2. It is used to raise a load of 15 kgf. What effort is needed?
उत्तर
Given,
Mechanical advantage = 2
Load = 15 Kgf
Mechanical advantage = `"Load "/"Effort"`
Effort = `"Load "/"Mechanical advantage"`
=`15/2 `
= 7.5 kgf
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