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18-10-2019
Physics

contestada

A car is moving from rest and the velocity increases to 30 m/s in 4 seconds. Calculate its acceleration.

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MathPhys MathPhys

18-10-2019

Answer:

7.5 m/s²

Explanation:

Given:

v₀ = 0 m/s

v = 30 m/s

t = 4 s

Find: a

v = at + v₀

(30 m/s) = a (4 s) + (0 m/s)

a = 7.5 m/s²

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