Sketch a wheel lying in the plane of your paper and rotating counter clock wise. Choose a

Question:

Sketch a wheel lying in the plane of your paper and rotating counter clock wise. Choose a point on the rim and draw a vector 1 from the center of the wheel to that point.
(a) What is the direction of w?
(b) Show that the velocity of the point is v = w x 1.
(c) Show that the radial acceleration of the point is a mi = w x it = w x (w x 1) (see Exercise 9.28).