contestada

Acceleration is defined as a change in velocity over time. If a runner increases velocity
from 2 m/s to 4 m/s over a period of 20 seconds, what is her acceleration?

Respuesta :

rafaleo84

Answer:

a = 0,1[m/s^2]

Explanation:

First we need to indentify the initial data.

And using this kinematic equation we have:

[tex]v = 4[m/s]\\v_{0}= 2 [m/s] \\t = 20[s]\\\\v= v_{0}+a*t\\a=\frac{v-v_{0}}{t} \\a= \frac{4-2}{20} \\a=0.1[m/s^{2}][/tex]

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