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प्रश्न
Give one example of a class I lever where mechanical advantage is more than one ?
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उत्तर
More than one: shears used for cutting the thin metal sheets .
संबंधित प्रश्न
Which class of lever will always have MA > 1 and why?
Name a machine to obtain gain in speed ?
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?
shows a nut cracker name the class of lever ?
Which class of lever found in the human body is being used by a boy when he holds a load on the palm of his hand.
The following belong to which class of lever?
Human-arm
The following belong to which class of lever?
Knife
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.
A crowbar of length 100 cm is used to lift a load of 5 kgf. It has its fulcrum at a distance of 20 cm from the load. Calculate:
(i) the mechanical advantage of a crowbar and,
(ii) the effort applied at the other end.
What is a first-order lever?
