The angular acceleration of the toppling pole shown in fig is given by `a= k sin theta`, where `theta ` is the angle between the of the pole and the vertical, and k is aconstant. The pole starts from rest at `theta=0`. Find (a) the tan gential and (b) the centripetal acceleration of the upper end of the pole in terms of `k, theta`, and (the length of the pole.)

Answer

(a) `lk sin theta;` (b) `2kl (1- cos theta)`