1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Calculating torque

  1. Dec 12, 2012 #1
    A gearbox and flywheel with a output shaft rotating in the opposite direction to the input shaft at 5 times it's speed. The gearbox has an efficiency of 92%
    If the flywheel is solid has a mass of 50kg a diameter of 1.5m and is to accelerate from the rest to 300 revs min^-1 in 1minute

    Can someone please show me how to calculate torque required at the input shaft please
  2. jcsd
  3. Dec 12, 2012 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Hint: output torque = input torque / gear ratio
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook