Question

A point P moves in a counter-clockwise direction
on a circular path as shown in the figure. The
movement of P is such that it sweeps out a
length S= t3 + 5 where s is in metre and t is in
seconds. The radius of the path is 27 m. The
acceleration of P when t = 3 s is __ m/s2.​

Answer 1

58 m/s2 27m path is 27 meter