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A racecar drives 10 laps around a 1-mile oval track in 250 seconds. What is the racecar’s velocity?

 

 

A river is flowing South at 14 mph relative to the bank. If a man rows a boat downstream at 5 mph relative to the river, what is the velocity of the boat full of scouts relative to the river bank?

 Jan 22, 2019
 #1
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Velocity = how far, how fast=  distance/time =   (10 laps * 1mile/lap)  /  250 s  = 10 miles/250 s = .04 mile/s =  144 mile/hr

 

 

Is the man rowing a boat full of scouts?

   the velocities would add      14 + 5 = 19 mph relative to the bank

 Jan 22, 2019
edited by ElectricPavlov  Jan 22, 2019
 #2
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Thank you for answering all three questions 

McAcey  Jan 22, 2019
 #3
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G'Luck....I hope it is getting clearer to ya !cheeky

ElectricPavlov  Jan 22, 2019

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