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प्रश्न
State the principle of a lever?
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उत्तर
A lever works on the principle of moments. For an ideal lever, it is assumed that the lever is weightless and frictionless. In the equilibrium position of the lever, by the principle of moments,
Moment of load about the fulcrum = Moment of effort about the fulcrum.
Load × Load arm = Effort × Effort arm
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संबंधित प्रश्न
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shows a nut cracker name the class of lever ?
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(a) To which class of lever does it belong?
(b) If FA = 80 cm, AB = 20 cm, find its mechanical advantage.
(c) Calculate the value of E.
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Give three examples for leavers of second order.
Give three examples for leavers of the third order.
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