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प्रश्न
Give one example of a class I lever where mechanical advantage is more than one ?
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उत्तर
More than one: shears used for cutting the thin metal sheets .
संबंधित प्रश्न
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 the third order.
The following belong to which class of lever?
A see-saw
The following belong to which class of lever?
An oar of a boat
The following belong to which class of lever?
A fire tongs
The following belong to which class of lever?
Wheelbarrow
The following belong to which class of lever?
Fore-arm
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.
Draw a labelled sketch of a second class lever. Give one example of such a lever.
