Given the vector function r(t)=4t,2t2,3t3+5\displaystyle \vec{{r}}{\left({t}\right)}={\left\langle-{4}{t},-{2}{t}^{{2}},-{3}{t}^{{3}}+{5}\right\rangle}

Find the velocity and acceleration vectors at t=1\displaystyle {t}=-{1}

v(1)\displaystyle \vec{{v}}{\left(-{1}\right)} =
 
 
 

a(1)\displaystyle \vec{{a}}{\left(-{1}\right)} =