Hi.

If brakes are applied while a motorcycle is on the air; will land its front wheel first, right ?



If throttle is applied while on air, will land its rear wheel first, right ?

 

Use of the brakes or throttle while in the air will make diddly-squat difference to the way it lands. The landing angle will be determined more by the initial launch angle and velocity, gravity, and the wind resistance of rider and bike.

 

The transfer of angular momentum from wheels into the main body mass center of gravity under gravitational 'free fall'.
https://en.wikipedia.org/wiki/Moment_of_inertia

They act like reaction wheels.

 

Rear Shock/Spring settings, and front Fork-Damping and Spring-Rates,
can have a significant impact on the Attitude / Inertia / Balance that
the Bike will "try" to assume upon leaving the ground.

Acceleration, or Deceleration, of the Bike, with the Front-Wheel already in the Air,
will change the Attitude / Inertia / Balance of the Bike as the Rear-Tire leaves the ground.

Once a "Trajectory" has been established, and the Attitude / Inertia / Balance are all established,
there is very little that can be done to change these factors,
other than "the appearance" of what is happening during a Jump by a very experienced "Trick-Rider".

Shifting of your Body-Weight has far more effect than any amount of Braking or Accelerating in the Air.

Accelerating the Rear-Tire is not going to "save You" from an "End-over-End" crash,
only many hours of "pushing-your-luck-practice" will solve that problem.

A poorly set-up Suspension-System can seriously aggravate
how any of the Bike's "bad-manners" may manifest themselves.

Any Dirt-Bike that weighs more than around ~130% of the riders weight is a seriously-bad-joke,
and requires a serious amount of physical-strength, and constant-training, to be tolerable, and competitive.

Your weight, vs, the Bikes-weight, has everything to do with being able to control the Bike in the Air.
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https://ffden-2.phys.uaf.edu/webpro...n_Horning/15799152395cb521f75a4c9/in-air.html
The Physics While in Air

The only 'trick' here is good old Newtonian classical physics.

 

Did not know that video existed. Thought that the torques in acceleration and braking have repercussion in the counter-torque action affecting landing level much more than diddly-squat. I rest in peace now. Thanks.

 

Interesting. Wheels have mass. Accelerating or slowing the spin will have a distinct effect on the motion and orientation of the bike. Imagine a bike in a weightless environment.
I would like to know who the lunatic was that figured it all out without killing himself.