Question

A car is moving east at 35 m/s. I it accelerates at 20 m/s squared for a period of 22 seconds, what is its final velocity?

Answer 1

`acceleration=(velocity_(final)-velocity_(initial))/(time)\\\\ 20(m)/(s^2)=(velocity_(final)-35(m)/(s))/(22s)\ \ \ |*22s\\\\ 440(m)/(s)=velocity_(final)-35(m)/(s)\ \ \ |Add\ 35(m)/(s)\\\\ velocity_(final)=475(m)/(s)`