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प्रश्न
The following belong to which class of lever?
Nutcracker
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उत्तर
Second-class of lever
संबंधित प्रश्न
Which class of lever will always have MA > 1 and why?
Name a machine to obtain gain in speed ?
Write down a relation expressing the mechanical advantage of a lever.
Give one example of a class I lever where mechanical advantage is more than one ?
A lever of length 9 cm has its load arm 5 cm long and the effort arm is 9 cm long.
- To which class does it belong?
- Draw a diagram of the lever showing the position of fulcrum F and directions of both the load L and effort E.
- What is the mechanical advantage and velocity ratio if the efficiency is 100%?
- What will be the mechanical advantage and velocity ratio if the efficiency becomes 50%?
Which type of levers have mechanical advantage always more than 1? Give reasons.
Give three examples for leavers of 1st order.
The following belong to which class of lever?
Pliers Tools
The following belong to which class of lever?
A fire tongs
A crowbar of length 100 cm is used to lift a load of 5 kgf. It has its fulcrum at a distance of 20 cm from the load. Calculate:
(i) the mechanical advantage of a crowbar and,
(ii) the effort applied at the other end.
