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प्रश्न
Name the class of the lever shown in the picture below:
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उत्तर
The simple machine shown in the figure is a bottle opener. It is a class II lever, as it always acts as a force multiplier.
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संबंधित प्रश्न
Give one example of a class I lever in a case where the mechanical advantage is equal to 1?
Name the class to which the following lever belong:
an oar rowing a boat.
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a crowbar
In a lever, the fulcrum is at one end at a distance of 30 cm from the load and effort is at the other end at a distance of 90 cm from the load. Find :
(a) the length of load arm,
(b) the length of effort arm, and
(c) the mechanical advantage of the lever.
Answer the following.
State the principle of levers.
Answer the following.
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Draw a labelled diagram of a class II lever. Give one example of such a lever.
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