Question

Marisa’s car accelerates at an average rate of 2.6m/s^2. Calculate how long it takes her car to accelerate from 24.6m/s to 26.8m/s? Show your work.

Answer 1

given info is... Acceleration(a)=2.6m/s^2

                       final velocity(v)=26.8m/s

                       initial velocity(u)=24.6m/s

need to find.... time(t)=?

$a=\frac{v-u}{t} \\2.6=\frac{26.8-24.6}{t}$

$t=\frac{v-u}{a}$

$t=\frac{26.8-24.6}{2.6}$

$t=0.846s$

Explanation: