NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
The vertical motion of mass A is defined by the relation $x = \cos(10t) - 0.1\sin(10t)$, where $x$ and $t$ are expressed in mm and
seconds, respectively. Consider $t = 0.4$ s.
Determine the position, velocity, and acceleration of A
(You must provide an answer before moving to the next part. Include a minus sign if necessary.)
The position, velocity, and acceleration of A when $t = 0.4$ s are mm, mm/s, and mm/s$^2$, respectively.