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प्रश्न
How does the friction at the fulcrum affect the mechanical advantage of the lever?
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उत्तर
Friction at the fulcrum reduces the mechanical advantage.
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संबंधित प्रश्न
What do you mean by the mechanical advantage of a lever?
Give one example of a class I lever where the mechanical advantage is more than 1.
The diagram given below shows the three kinds of levers. Name the class of lever and give one example of the class.
Name the machine to which the following belong:
Lemon crusher
A lever of length 100 cm has the effort of 15 kgf at a distance of 40 cm from the fulcrum at one end. What load can be applied at its other end?
Tick the most appropriate answer.
Which of the following is a Class II lever?
Classify the following into levers:
A catapult
Classify the following into levers:
A fishing rod
The diagram below shows a rod lifting a stone.
- Mark position of fulcrum F and draw arrows to show the directions of load L and effort E.
- What class of lever is the rod?
- Give one more example of the same class of lever stated in part (b).
second-order lever ______.
