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प्रश्न
Name the class to which the following lever belong:
a crowbar
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उत्तर
a crowbar: Class I lever.
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संबंधित प्रश्न
Name the class to which the following lever belong:
A pair of scissors
Name the class to which the following lever belong:
a wheelbarrow
Name the machine to which the following belong:
Sugar tongs
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 in a word or two or in a sentence.
Give one example of a machine used to multiply speed.
Give one example of a class I lever where mechanical advantage is less than 1.
Explain why the mechanical advantage of a class II of lever is always more than 1.
Draw a labelled diagram of a class II lever. Give one example of such a lever.
Classify the following into levers:
A catapult
Classify the following into levers:
Wheel barrow
