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Question
Answer the following in a word or two or in a sentence.
Give one example of a machine used to multiply speed.
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Solution
Class III lever (hockey stick, fbreep)
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RELATED QUESTIONS
Give one example of a class I lever in a case where the mechanical advantage is equal to 1?
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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 :
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(b) the length of effort arm, and
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Answer the following.
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The diagram below shows a rod lifting a stone.
- Mark position of fulcrum F and draw arrows to show the directions of load L and effort E.
- What class of lever is the rod?
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Name the class of the lever shown in the picture below:

