Question

A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the
slope, its speed is 4 m/s. But 3 seconds later, at the bottom of the slope, its speed is 22
m/s. What is its average acceleration?

Answer 1

Answer:

Accel = Vf - Vi

t x=22 m/s – 4 m/s

3 s

Accel=x

Vf=22 m/s x=18 m/s

Vi=4 m/s 3 s

t=3 s

x=6 m/s/s

Explanation:

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