Question

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?

Answer 1

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

Step-by-step explanation:

First we need to indentify the initial data.

And using this kinematic equation we have:

`v = 4[m/s]\\v_(0)= 2 [m/s] \\t = 20[s]\\\\v= v_(0)+a*t\\a=(v-v_(0))/(t) \\a= (4-2)/(20) \\a=0.1[m/s^(2)]`