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प्रश्न
A lever of length 100 cm has the effort of 15 kgf at a distance of 40 cm from the fulcrum at one end. What load can be applied at its other end?
उत्तर
Given,
Effort = 15 kgf
Load arm = 100 cm
Effort arm = 40 cm
Mechanical advantage = `"Effort arm "/"Load arm" = 40 /100 = 0.4`
By definition ,
Mechanical advantage =`"Load"/"Effort"`
∴ 0.4 = `"Load"/"15 kgf"`
⇒ Load = 15 kgf × 0.4
∴ Load = 6 kgf
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संबंधित प्रश्न
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Answer the following in a word or two or in a sentence.
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Which type of lever has a mechanical advantage always more than one? Give one example. What change can be made in this lever to increase its mechanical advantage?
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| Sl. No | Examples | Class of Lever |
| 1. | Spade | |
| 2. | Seesaw | |
| 3. | Wheel barrow | |
| 4. | Plier | |
| 5. | Nail cutter |
Lemon juicer belongs to which type of lever? Why?
