A cyclist named Carly Daugherty accelerates from 0 m/s to 8 m/s in 3 seconds. What is her acceleration? Is this acceleration higher than that of Soul Train's car, which accelerates from 0 to 30 m/s in 8 seconds? How do you know

Question

Nyla

Physics

22 September, 15:37

A cyclist named Carly Daugherty accelerates from 0 m/s to 8 m/s in 3 seconds. What is her acceleration? Is this acceleration higher than that of Soul Train's car, which accelerates from 0 to 30 m/s in 8 seconds? How do you know

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Answers (1)

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Elisa · Answer 1

Magnitude of acceleration =

(change in speed) / (time for the change).

Magnitude of Carly's acceleration =

(8 m/s) / (3 sec) = 2-2/3 m/s²

Magnitude of Soul Train's acceleration =

(30 m/s) / (8 sec) = 3.75 m/s².

Soul Train's acceleration is about 41% greater than Carly's.