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 acceleration?

Answer 1

Answer:

a=v-u by t

a=22m/s-4m/s by 3 s

=6m/s square

Explanation:

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