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23 Nov 2019

For the first 10.0 km of a marathon, a runner averages a velocitythat has a magnitude of 19.0 km/h. For the next 15.0 km, heaverages 15.0 km/h, while for the last 15.0 km, he averages 11.0km/h.

What is the runner's total time (in min)?
What is the average speed of the runner (in km/h)?
By how much does he finish ahead of another runner who averages12.0 km/h for the entire race (min)?

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Nestor Rutherford
Nestor RutherfordLv2
29 Mar 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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I no this is alot of questions but im having trouble answeringthese! So please help me..

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