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30-09-2019
Physics

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A car is traveling at 10m/s before it increases its speed to 30m/s for 120m. How long does it take to do this ?

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MathPhys MathPhys

30-09-2019

Answer:

60 seconds

Explanation:

Given:

v₀ = 10 m/s

v = 30 m/s

Δx = 120 m

Find: t

Δx = ½ (v + v₀)t

120 = ½ (30 + 10) t

t = 60

It takes 60 seconds.

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