Question

Usain Bolt went from 0.0 to 11.0m/s in 3.4s. What was his acceleration?

Answer 1

Answer:

Change in speed = 11 m/s

Time taken = 3.4s

Hence, acceleration = (11/3.4) m/s² = 3.235 m/s²

Answer 2

$\:$

Change in speed = 11 m/s

Time taken = 3.4s

Hence, acceleration = (11/3.4) m/s² = 3.235 m/s²