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प्रश्न
The following belong to which class of lever?
The Physical balance
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उत्तर
First-class of lever
संबंधित प्रश्न
Which class of lever will always have MA > 1 and why?
Give one example of a class I lever where mechanical advantage is more than one ?
The lever for which the mechanical advantage is less than 1 has :
A 4 m long rod of negligible weight is to be balanced about a point 125 cm from one end and a load of 18 kgf is suspended at a point 60 cm from the support on the shorter arm.
- If a weight W is placed at a distance of 250 cm from the support on the longer arm to balance the rod, find W.
- If a weight 5 kgf is kept to balance the rod, find its position.
- To which class of lever does it belong?
The following belong to which class of lever?
Human-arm
In the following diagram of a wheelbarrow, mark the fulcrum (F) and indicate the directions of load (L) and effort (E) with arrows.
What class of lever is it? Give one more example of the same class of lever.
When we want to use a machine as a force multiplier, which class of lever should we preferably use? Give a simple diagram of such a lever.
What is a lever?
The length of a nut-cracker is 12 cm. A nut, when kept at a distance of 4 cm from its fulcrum, requires an effort of 100 gf to crack it. What force will be required to crack the nut without using the nut-cracker?
What is a first-order lever?
