Average Biking Miles Per Hour

By admin, April 2, 2010 2:45 pm

average rate problem?

I can’t believe the answer given in the back of this book. This should be so easy.

Q: A cyclist bikes x distance at 10 miles per hour and returns over the same path at 8 miles per hour. What is the cyclist’s average rate for the round trip in miles per hour? Answer given is 8.9 miles per hour. I thought it would be 9.0.

Just to make it simple, let’s say x is 40 miles. It doesn’t actually matter what x is, the answer will be the same. So I picked a convenient value.

So at 10 mph, it will take 4 hours and at 8 mph, it will take 5 hours. So the 80 mile round trip took 9 hours. The average rate of speed is 80/9 = 8.9 mph, approximately.

Sam Whittingham 53.918 mph World Hour Bicycle Record



5br - 5 BR 2 Miles To Disney $1,099 Per Week


5br – 5 BR 2 Miles To Disney $1,099 Per Week


$157


Two Miles From Disney Fireworks From Back YardBeautiful five bedroom five bath home with heated pool and spa located in 24 hour gated resort community 5 minutes from Walt Disney World. Home is located in the new "Reserve" section of Windsor Hills….

Hitachi Replacement Lamp - 160W UHB Projector Lamp - 2000 Hour Average, 3000 Hour Whisper Mode CPX1X253LAMP


Hitachi Replacement Lamp – 160W UHB Projector Lamp – 2000 Hour Average, 3000 Hour Whisper Mode CPX1X253LAMP


$352.49


Hitachi Replacement Lamp – 160W UHB Projector Lamp – 2000 Hour Average, 3000 Hour Whisper Mode CPX1X253LAMP

Make Waves Instrument MILES-PER-GALLON GAUGE


Make Waves Instrument MILES-PER-GALLON GAUGE


$29.99


MILES-PER-GALLON GAUGE For all cars, trucks, vans and RVs Miles-per-gallon scale shows actual gas mileage as you drive Easy to install on or under dash Slash your fuel costs with this easy-to-read illuminated fuel economy-performance gauge. Color-coded zones tell you when your engine is producing the most power for the least gas. Approx. 3-1/2″; diam. face. With mounting housing. Complete with Operating/Installation Manual.

Hitachi Replacement Projector Lamp 150W UHB 2000 Hour Average For CP-S225W CPS225LAMP


Hitachi Replacement Projector Lamp 150W UHB 2000 Hour Average For CP-S225W CPS225LAMP


$393.27


Hitachi Replacement Projector Lamp 150W UHB 2000 Hour Average For CP-S225W CPS225LAMP

Hitachi Replacement Lamp 220W UHB Projector Lamp 2000 Hour Average CPX400300X200LAMP


Hitachi Replacement Lamp 220W UHB Projector Lamp 2000 Hour Average CPX400300X200LAMP


$304.77


Hitachi Replacement Lamp 220W UHB Projector Lamp 2000 Hour Average CPX400300X200LAMP

Comments are closed

Panorama Theme by Themocracy