How long does it take for a car with an acceleration of 0.4 m / s squared to increase its speed from 12 to 20 m / s.

univerkov | November 30, 2020 | education

Let’s write down the acceleration formula: a = (V-Vo) \ t.
Let us express the time we need from this formula: t = (V-Vo) / a.
Let’s substitute these tasks:
t = (20-12) /0.4=20s.
Answer: t = 20c

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