Question

If a car,with an initial velocity of 20m/s, accelerates at a rate of 5m/s2 for 3 seconds, what will its final velocity be?

Answer 1

Initial velocity of car, $u=20m/s$

Acceleration of car, $a=5m/s^2$

Time, $t=3s$

Velocity after 3s, $v=u+at=20+(5*3)=35m/s$