About the Author: Michael Flood


  1. It seems like Indian students are much more into theoritical education than the Mitians. Though we indians dont get practical education but the depth of questions we reach to is better than americans

  2. The good thing is Americans focus on learning and absorbing whereas we indians focus more in depth of the subject + cramming if we dont get it

  3. Sorry guys, I'm new to this. If we replaced the circle with a square, and applied the same angular force in this example to the square, why does the square not move as freely as the circle?

  4. Hi, it would be very helpful if someone could help me with this question:
    Let's say we have a wheel, we give it a starting speed (Ucm let's call it) and it rolls on a surface with friction.
    Now, everyday life observation says the wheel must stop at some point, right?

    Well, how does it stop? I can't seem to find out a way where the friction's torque does not accelerate one movement and decelerate the other…

  5. I am not getting completely. my ques is that if torque is provided by friction so why the wheel stopped aftr sometime as friction is always there.

  6. You might find this invention from the early 18th century to be of interest:


  7. Can someone explain me this? It says that the slipping wheel has not static friction, well that's right. But still has kinetic friction, right? And the other question is: in the case of the rolling wheel where there is static friction. If the wheel is rotating with zero linear acceleration, does it still has static friction? Or not and it only stops in theory because of air resistance?

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