The angular position of a rotating platform is given by (in radians)

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics

Problem

The angular position of a rotating platform is given by

\theta=4t^{3}-2t

(in radians), where

t

is in seconds. Determine the magnitude of the tangential component of acceleration of a point

0.20\,\text{m}

from the axis at

t=2.0\,\text{s}

. (a)

4.8\,\text{m/s}^{2}

(b)

48\,\text{m/s}^{2}

(c)

9.6\,\text{m/s}^{2}

(d)

96\,\text{m/s}^{2}