Which class of lever has the mechanical advantage always more than 1 ? Give an example.
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The mechanical advantage of class II levers is always more than 1. Example : nut cracker.
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What is a lever?
What do you mean by the mechanical advantage of a lever ?
Which class of lever has the mechanical advantage always less than 1 ? Give an example.
Give one example of class I lever in each case where the mechanical advantage is
(i) more than 1
(ii) equal to 1
(iii) less than 1.