Dynamics - Chapter 17 (4 of 4): Motorcycle Wheelie (Example Problem)

Additional video example problems with worked solutions can be found here: • Dynamics Problems - En...
The "wheelie" is a fascinating display of kinetics of a rigid body. Factors such as the center of gravity and the acceleration are both components to lifting the front wheel off the ground. This simplistic example breaks down the dynamics of how to do a wheelie.
These lessons are an introduction to the topic of Engineering Mechanics: Dynamics. The lessons follow the chapter progression in R.C. Hibbeler Engineering Mechanics: Dynamics textbook. They are brief tutorials of the main concepts.

[@roudyrahme5441]

I was really disappointed when I understood it in 10 minutes instead of 3 hours at the university. You are the best!

[@luvunoluyanda184]

Well done

[@MojahedXify]

i was literally disappointed when the video ended i was really enjoying it

[@dirtbagd89]

Interesting video. What about the torque reaction from the torque going through the rear wheel to the road. This would also be trying to lift the front of the bike so shouldn't it be considered too?

[@ProfessorJohns]

The torque at the rear wheel is taken into account in this problem. Since we are tasked to solve for acceleration, we don’t frame the problem in terms of rear wheel torque. The acceleration we solve for in this problem is the effect of torque on the rear wheel. At the end of the video we solve for the frictional force between the road and the tire. If we knew the diameter of the wheel, we could solve for the resultant rear wheel torque needed to lift the front tire off the ground. Also, note that this is a static problem, we are not considering dynamic effects (the rider shifting weight, effects of “popping the clutch, etc.) It is a simplified analysis, in reality, by shifting your weight and using the clutch advantageously it would require much less acceleration to lift the front wheel off the ground. Thanks for taking the time to watch the video.