Mice8Guy
contestada

A pronghorn antelope has been observed to run with a top speed of 97 km/h. Suppose an antelope runs 1.5 km with an average speed of 85 km/h, and then runs 0.80 km with an average speed of 67 km/h. How long will it take the antelope to run the entire 2.3 km?

Can you guys Explain this in the most detail possible, I'd really appreciate it.

Respuesta :

W0lf93

0.030 hours  
First part of run 
d = 1.5 km 
s = 85 km/h 
t = d / s = 1.5/85 
t1 = 0.017647 hours  
Second part of run 
d = 0.80 km 
s = 67 km/h 
t = d / s = 0.80/67 
t2 = 0.011940 hours  
t1 + t2 = 0.017647 + 0.011940 
= 0.030 â„Žours

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