15.2 The motion of an oscillating flywheel is defined
by the relation heta = heta _(0)e^(-3pi t)cos4pi t, where heta is
expressed in radians and t in seconds. Knowing
that heta _(0)=0.5rad, determine the angular
coordinate, the angular velocity, and the angular
acceleration of the flywheel when (a)t=0,(b)t
=0.125s.
15.2 The motion of an oscillating flywheel is defined by the relation 0 = Ooe-3nt cos 4nt, where 0 is expressed in radians and t in seconds. Knowing that Go = 0.5 rad, determine the angular coordinate, the angular velocity, and the angular acceleration of the flywheel when (a t = 0, (b = 0.125 s.