A race car is moving at 29.9 m/s when the driver engages the nitrous oxide which accelerates the car by 2.8 m/s2 in 1.9 s. How fast is the car going after the nitrous oxide?

Question

A race car is moving at 29.9 m/s when the driver engages the nitrous oxide which accelerates the car by 2.8 m/s² in 1.9 s. How fast is the car going after the nitrous oxide? 

Answer 1

Since the acceleration is constant, you can use the relation

v(t) = v₀ + at

v₀ = initial speed = 29.9 m/s

a = acceleration = 2.8 m/s²

t = duration of acceleration = 1.9 s

Plug in the numbers and get v(t) in m/s.