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Question
Which class of lever found in the human body is being used by a boy when he raises the weight of his body on his toes?
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Solution
Class II lever.
RELATED QUESTIONS
Which class of lever will always have MA > 1 and why?
Write down a relation expressing the mechanical advantage of a lever.
Give one example of a class I lever where mechanical advantage is more than one ?
Draw a diagram of a lever which is always used as a force multiplier. How is the effort arm related to the load arm in such a lever?
Fig 3.17 below shows a lever in use.
(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.
The following belong to which class of lever?
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The following belong to which class of lever?
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The following belong to which class of lever?
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The following are an example of levers. State the class of lever to which each one belongs giving the relative positions of Load (L), Effort (E), Fulcrum (F):
(i) Scissors (ii) Sugar tongs (iii) Nutcracker (iv) Pliers.
What is a first-order lever?
