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zavuch27 [327]
2 years ago
11

People often use simple machines like pulleys, levers, and ramps because they say the machine “makes the work easier.” Which of

the following statements about simple machines is true?
a.
Simple machines often reduce the amount of work to move an object.

b.
Simple machines often reduce the energy required to move an object.

c.
Simple machines often reduce the power consumed when moving an object.

d.
Simple machines often reduce the force needed to move an object.
Physics
1 answer:
dimulka [17.4K]2 years ago
3 0
I think the answer is D.
Hope this help
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Answer:

The time is t = 2.595 \  s

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Explanation:

From the question we are told that

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       h  =  ut + \frac{1}{2} gt^2

before the jump the persons initial velocity is  u =  0 m/s

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