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lorasvet [3.4K]
2 years ago
5

How much work is required for a 74 kg sprinter to accelerate from rest to 2.2 m/s?

Physics
2 answers:
My name is Ann [436]2 years ago
7 0

Answer:

179.1 kg

Explanation:

BigorU [14]2 years ago
3 0

Answer:

Should be 179.1 kg

Explanation:

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The stopping distance d of a car after the brakes are applied varies directly as the square of the speed r. If a car travelling
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270/70^2  = x/80^2

Cross multiply

270 (6400) = 4900x   

x = 270(6400)/4900

352 and 32/49 feet

Hope this helps


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3 years ago
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2 years ago
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gladu [14]

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