Intro to Connected Wheels Video Lessons

Video Thumbnail

Concept

Problem: In cars, a gear train (shown in the figure) is used in the transmission to allow the wheels of the car to rotate at high angular speeds while at low engine rpm's, allowing for less gas to be used. If the drive gear in a gear train is connected directly the engine, and the driven gear directly to the wheels (meaning both rotate with their respective gears), what gear ratio would allow the car to move at 60 mph while the engine rotates at 1500 rpm? Note that the definition of gear ratio is the driven gear radius : drive gear radius. Consider this for wheels with a 45 cm diameter. 

FREE Expert Solution
95% (227 ratings)
Problem Details

In cars, a gear train (shown in the figure) is used in the transmission to allow the wheels of the car to rotate at high angular speeds while at low engine rpm's, allowing for less gas to be used. If the drive gear in a gear train is connected directly the engine, and the driven gear directly to the wheels (meaning both rotate with their respective gears), what gear ratio would allow the car to move at 60 mph while the engine rotates at 1500 rpm? Note that the definition of gear ratio is the driven gear radius : drive gear radius. Consider this for wheels with a 45 cm diameter. 

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Intro to Connected Wheels concept. You can view video lessons to learn Intro to Connected Wheels. Or if you need more Intro to Connected Wheels practice, you can also practice Intro to Connected Wheels practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofIn cars, a gear train (shown in the figure) is used in the t...as high difficulty.

How long does this problem take to solve?

Our expert Physics tutor, Jeffery took 6 minutes and 2 seconds to solve this problem. You can follow their steps in the video explanation above.