violettarhythmic violettarhythmic

03-10-2021
Physics

contestada

A car increases its velocity from zero to 68 km/h in 12 s.
What is its acceleration?
Answer in units of m/s^2

Respuesta :

evgeniylevi evgeniylevi

14-10-2021

Answer:

1.574 [m/s²].

Explanation:

1) acceleration is: a=(V-V₀)/t, where V - final velocity [68km/h=18.(8)m/s]; V₀ - initial velocity [0]; t - elapsed time [12sec.];

2) according to the formula above:

a=18.(8)/12≈1.574 [m/s²].

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