Acheetah can go from a state of resting at running at 20m/s in just two seconds. what is the cheetahs average acceleration
a.40 m/s
b.40 m/s^2
c.10 m/s
d.10 m/s^2

Acceleration = change in velocity/change in time
so...
a = 20 m/s / 2 seconds
a = 10

hope that helps :)

A.
40 m/s
You have to multiply 20 times 2 because there were 2 seconds.

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