A pendulum has a $0\mathrm{.}4-$ m $-$long cord and is given a tangential velocity of $0\mathrm{.}2\frac{m}{s}$ toward the vertical from a position $=0\mathrm{.}3$rad

Part A

Determine the equation which describes the angular motion.

Express your answer in terms of the variable $t.$ Express coefficients in radians to three significant figures.

$(t)=-1\mathrm{.}01sin(4\mathrm{.}95t)+0\mathrm{.}3cos(4\mathrm{.}95t)$

Previous Answers

All attempts used; correct answer displayeD

PLEASE show me how to get that answer answer