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प्रश्न
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?
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उत्तर
Because the effort arm of a Class II lever is longer than the load arm and the mechanical advantage is always greater than 1, the lever multiplies force.
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संबंधित प्रश्न
The lever for which the mechanical advantage is less than 1 has :
Class II levers are designed to have ______.
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?
Give three examples for leavers of second order.
The following belong to which class of lever?
Pliers Tools
The following belong to which class of lever?
Wheelbarrow
The following are an example of levers. State the class of lever to which each one belongs giving the relative positions of Load (L), Effort (E), Fulcrum (F):
(i) Scissors (ii) Sugar tongs (iii) Nutcracker (iv) Pliers.
In the diagram shown alongside a claw hammer, 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 this class of lever.
State the types (or kinds) of lever, and give two examples of each kind.
What is a first-order lever?
