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प्रश्न
The following belong to which class of lever?
A claw-hammer
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उत्तर
First-class of lever
संबंधित प्रश्न
Name a machine to obtain gain in speed ?
State the principle of a lever?
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?
The lever for which the mechanical advantage is less than 1 has :
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%?
The following belong to which class of lever?
The Physical balance
The following belong to which class of lever?
An oar of a boat
The following belong to which class of lever?
A fire tongs
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.
The length of a nut-cracker is 12 cm. A nut, when kept at a distance of 4 cm from its fulcrum, requires an effort of 100 gf to crack it. What force will be required to crack the nut without using the nut-cracker?
