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In Physics / High School | 2014-09-05

With an average acceleration of \(-2.4 \, \text{m/s}^2\), how long will it take a cyclist to bring a bicycle with an initial speed of \(13.2 \, \text{m/s}\) to a complete stop?

Answer in units of seconds.

Asked by beckypalma

Answer (2)

If his speed ( decreases by 2.4 meters per second every second )**, then his speed will be zero in (13.2 / 2.4) = 5.5 seconds.
** That's the meaning of "acceleration of -2.4 m/s² " .

Answered by AL2006 | 2024-06-10

The cyclist will take about 5.5 seconds to come to a complete stop from an initial speed of 13.2 m/s with an average acceleration of -2.4 m/s². This is calculated using the relationship between acceleration, change in velocity, and time.
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Answered by AL2006 | 2024-10-10

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