Question

A car accelerates from rest at a rate of 5m/s^2. How fast is it traveling after 4 seconds

Answer 1

Here hope it helps :)

Answer 2

The velocity after 4 seconds will be 20 (m/s)

Step-by-step explanation:

`a = (dv)/(dt) \\\\a*\int\limits^t_ {t0} \, dt = \int\limits^v_ {v0} \, dv \\\\a*(t-to)=v-v0\\v=vo+a*t\\\\replace\\\\\\V0= 0`