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प्रश्न
The following belong to which class of lever?
A see-saw
एक पंक्ति में उत्तर
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उत्तर
First-class of lever
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
State the principle of a lever?
A man uses a crowbar of length 1.5 m to raise a load of 75 kgf by putting a sharp edge below the bar at a distance 1 m from his hand.
- Draw a diagram of the arrangement showing the fulcrum (F), load (L) and effort (E) with their directions.
- State the kind of lever.
- Calculate:
- load arm,
- effort arm,
- mechanical advantage and
- the effort needed.
Which type of levers have mechanical advantage always more than 1? Give reasons.
The following belong to which class of lever?
The Physical balance
The following belong to which class of lever?
A pair of scissors
The following belong to which class of lever?
Knife
The diagram below shows a lever in use.
(i) To which class of lever does it belong?
(ii) If FA = 40 cm, AB = 60 cm, then find the mechanical advantage of the lever.
What is a lever?
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 lever is used to multiply the force.
