Use factor-label methods to convert metric units. Final answer must be in scientific notation form.

Question

4. 10 hrs to sec

5. A jeepney tried to overtake a car. The jeepney moves at 75km/hr while the car

moves 28,456 ft/hr. Convert the speed of the jeep to ft/hr to identify if the jeepney can

overtake a car.

Answer 1

Hello, Shin,

1 meter = 3.28084 feet

(75km/hr)*(3.28084 feet/m)*(1000m/km) = 246,063 feet/hr

Since the car is travelling 28,456 ft/hr, the jeep will overtake it.

Just for fun, 1 foot/hr = 1.89x10^-4 miles/hr.

The jeep is travelling 46.6 miles/hr. I personally prefer the 2.46x10⁵ meters/hour meteric. Imagine explaining the speeding ticket to a North American judge.

Bob