Curves Defined by Parametric Equations (bicycle wheel)?

  • Thread starter Thread starter JoKeR
  • Start date Start date
J

JoKeR

Guest
A bicycle wheel has radius R. Let P be a point on the spoke of a wheel at a distance d from the center of the wheel. The wheel begins to roll to the right along the the x-axis. The curve traced out by P is given by the following parametric equations:

x = 23(theta) - 13sin(theta)

y = 23 - 13cos(theta)

What must we have for r and d?

r = ?
d = ?

I do know that the coordinates of this are (R(theta) - dsin(theta), R - dcos(theta)), but don't know how to solve for r and d.
never mind, I got it. Duh. 23 and 12.
 
Back
Top