Question

short Ques/Answer
1. what are simple machines? Give two example
2. How do simple machines help us ?
3. What is lever ? What is meant by first class, second class , and third class levers ?
4. What is an inclined plane ? How is it useful ?
5. Give two examples of a wedge being used in day to day life.

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Answer 1

3..In second class levers the load is between the effort (force) and the fulcrum. A common example is a wheelbarrow where the effort moves a large distance to lift a heavy load, with the axle and wheel as the fulcrum. ... With third class levers the effort is between the load and the fulcrum, for example in barbecue tongs.i know this

Explanation:

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