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Andre45 [30]
2 years ago
15

1. What do machines do? Change the amount of force one exerts. Decrease the amount of work that is done. Increase the amount of

work that is done. Eliminate friction.​
Physics
1 answer:
snow_lady [41]2 years ago
5 0

Answer: increase the amount of work that is done?

Explanation:

I’m not entirely sure to be honest but I’ll just use my logic here. Machines are made to increase efficiency and production. Machines are made to save time and energy as a pose to human work. So several machines can mass produce a lot of things and keep business booming. I’m not very good at explaining things but I hope this makes sense eventually.

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Answer:

92704.5 J

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Explanation:

m = Mass of person + bicycle = 75 kg

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d = Diameter = 0.388 m

Work done against gravity is given by

P=mgh\\\Rightarrow P=75\times 9.81\times 126\\\Rightarrow P=92704.5\ J

Work done is 92704.5 J

Force required is given by

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The force is 596.44737 N

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