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## Usain Bolt, an Olympian from Jamaica, is the fastest human ever recorded. Determine his average rate of acceleration if he achieved a speed

Question

Usain Bolt, an Olympian from Jamaica, is the fastest human ever recorded. Determine his average rate of acceleration if he achieved a speed of 10.4 m/s in 9.58 sec. (Think about what a sprinter’s initial speed is.)

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Physics
2 months
2021-07-21T12:37:51+00:00
2021-07-21T12:37:51+00:00 2 Answers
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## Answers ( )

Answer:1.09 m/s²Explanation:Given:

Final speed of the sprinter (v) = 10.4 m/s

Initial speed of the sprinter (u) = 0 m/s

(As the sprinter starts from rest position)Time taken to reach the speed(Δt) = 9.58 s

Average acceleration is defined as the rate of change of velocity.So, the acceleration of the sprinter is given as:Plug in all the given values and solve for acceleration, ‘a’. This gives,

Therefore,

the magnitude of the average acceleration of the sprinter is 1.09 m/s².Answer:1.09 m/s

Hope it helps. I hate Physics… ;p