jasaku9rns2hhabric jasaku9rns2hhabric

24-05-2017
Physics

contestada

How long does it take a car to accelerate from 20 m/s to 40 m/s if it accelerates at 5 m/s2?

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egenriether egenriether

30-05-2017

a = 5m/s²
v = 5t m/s² + 20 m/s
40 = 5t +20
20 = 5t
t=4s

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