Question

A roller coaster car picks up speed as it rolls down the slope. As it starts down

the slope, its speed is 4 m/s. It accelerates at a rate of 6 m/s/s. What is its
velocity after 3 seconds? *

Answer 1

22 m/s

Step-by-step explanation:

v(t) = Vo + at

v(3) = 4 + 6*3

v = 4 + 18

v = 22 m/s (almost 50 miles/hour)