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प्रश्न
The following belong to which class of lever?
Pliers Tools
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उत्तर
First-class of lever
संबंधित प्रश्न
The lever for which the mechanical advantage is less than 1 has :
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.
Define Lever
Give three examples for leavers of second order.
The following belong to which class of lever?
An oar of a boat
The following belong to which class of lever?
Rowing of a boat
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?
State the types (or kinds) of lever, and give two examples of each kind.
