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When a 1000.0 kg car accelerates uniformly to double its speed from 12.7 ms in 4.83 s. What net force acted on this car?
MadisonBgp5487
Kinetic energy is calculated using E = mv2/2
m = 400kg, v = 4m/s, so E = 3200J.
* * * * *
The question specified the mass as 200 kg, not 400 kg, so the correct answer is 1600J.
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoKE = 1/2 m V2 = (500) (4)2 = 8,000 Joules
Wiki User
∙ 6y agoYou can use Newton's Second Law for this:force = mass x acceleration
To get the acceleration, divide the difference in speed by the time.
Wiki User
∙ 6y agoIt is approx 2629 newtons.
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