//Example 6.5
theta=65;//Angle of bank (deg)
r=100;//Radius of curve (m)
g=9.80//Accleration due to gravity (m/s^2)
v=sqrt(r*g*tand(theta));//Speed (m/s)
printf('Speed to be driven at = %0.1f m/s',v)
//Openstax - College Physics
//Download for free at http://cnx.org/content/col11406/latest