Advertisements
Advertisements
प्रश्न
The following belong to which class of lever?
Pliers Tools
Advertisements
उत्तर
First-class of lever
संबंधित प्रश्न
What is a lever?
The lever for which the mechanical advantage is less than 1 has :
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?
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%?
Give three examples for leavers of the third order.
The following belong to which class of lever?
Sugar tongs
The following belong to which class of lever?
Nutcracker
The following belong to which class of lever?
Knife
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.
A lever is used to multiply the force.
