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प्रश्न
Which class of lever found in the human body is being used by a boy when he holds a load on the palm of his hand.
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उत्तर
Class III lever.
संबंधित प्रश्न
Name a machine to obtain gain in speed ?
Define Lever
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?
An oar of a boat
The following belong to which class of lever?
Sugar tongs
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.
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.
A lever is used to multiply the force.
