# Roberto Carlos - Goal!!

**Classical Mechanics**Level 5

What is the radius R from the ball path in the air?

Details And Assumptions:

-The air density 1\(kg/m^3\).

-The ball speed v=29.2\(m/s\).

-The balls' angular velocity \(\omega = 69.11 Rad/s\)

-Neglect the pushed away air from the back side of the ball.

-The pushed away air particles are perpendicular to the ball radius.

-Neglect the losses to the liner or angular velocity.

-The ball mass is 420g.

-The ball radius 11cm.

report you answer as ⌊R⌋.