1. The problem statement, all variables and given/known data A wheel changes its angular velocity with a constant angular acceleration while rotating about a fixed axis through its center. Show that the change in the magnitude of the radial acceleration during any time interval of a point on the wheel is twice the product of the angular acceleration, the angular displacement, and the perpendicular distance of the point from the axis. 2. Relevant equations $$a_r=\omega^2 r$$ 3. The attempt at a solution I really don't know. Please help.