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?

McAcey Jan 22, 2019

#1**+3 **

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

ElectricPavlov Jan 22, 2019