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Question

A wheelbarrow is an example of a _________ class lever.


A

1st

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B

2nd

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C

3rd

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D

4th

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Solution

The correct option is B

2nd


  1. Levers can be used to apply a strong force over a short distance on one end while only applying a modest force (effort) over a longer distance on the other.
  2. In a wheelbarrow, the fulcrum is at one end and the force applied is on the other end. The weight is situated in the middle of these two.
  3. In second-class levers, the load is between the effort (force) and the fulcrum.
  4. Thus, A wheelbarrow is an example of a second-class lever.

Hence, option (B) is correct.


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