Question

The automobile has a speed of 80 ft/s and an
acceleration a of magnitude 10 ft/s2
in the
direction shown when it is at point A. Determine
the radius of curvature of the path at point A, and
the tangential component of acceleration.
(Ans. ρ = 1280 ft)

Answer 1

\[a = \frac{ v^2 }{ \rho }\]
you need to use the component of a in the normal direction