how can i solve this problem is from calculus

The path r(t) = (4 sin t) i + (4 cos t) j describes motion on the circle x + y-=16. Find the particle's velocity and acceleration vectors at t= and 7, and sketch them as vectorson the curve. The velocity vector at t= = is v (Type exact answers, using radicals as needed.) The acceleration vector att= isa 6=(Di+ (Li (Type exact answers, using radicals as needed.) Choose the correct sketch for the particle's velocity and acceleration at t= OA. OB. Oc. OD. X X X al The velocity vector at t= g is v( # ) - CD.+ (D. (Type exact answers, using radicals as needed.) The acceleration vector at t= 2 is aThe path r(t) = (4 sin t) i + (4 cos t) j describes motion on the circle x" + y"=16. Find the particle's velocity and acceleration vectors at t- - and ,, and sketch them as vectorson the curve. e The velocity vector att = 3 is v 3 - (D . + (LD, (Type exact answers, using radicals as needed.) The acceleration vector at t= 3 is a 3 (Type exact answers, using radicals as needed.) Choose the correct sketch of the particle at t = ? O A. OB O c. O D. al la