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प्रश्न
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?
उत्तर
Because the effort arm of a Class II lever is longer than the load arm and the mechanical advantage is always greater than 1, the lever multiplies force.
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संबंधित प्रश्न
State the principle of 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.
Which type of levers have mechanical advantage always more than 1? Give reasons.
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?
The following belong to which class of lever?
The Physical balance
The following belong to which class of lever?
Rowing of a boat
The following belong to which class of lever?
Wheelbarrow
The following belong to which class of lever?
Nutcracker
The diagram shows the use of a lever.
- State the principle of moments as applied to the above lever.
- Which class of lever is this? Give an example of this class of lever.
- If FA = 100 cm, AB = 90 cm, calculate the minimum effort required to lift the load.
What is a first-order lever?
