Find the particle's velocity and acceleration vectors at the stated times and sketch them as vectors on the curve.

Motion on the circle x^2+y^2=16
r(t) = 4cos1/2t)i + (4sin1/2t)j t = pi and 3pi/2
@hartnn

Question

Find the particle's velocity and acceleration vectors at the stated times and sketch them as vectors on the curve.

Motion on the circle x^2+y^2=16
r(t) = 4cos1/2t)i + (4sin1/2t)j t = pi and 3pi/2
@hartnn

usukidoll · Answer

I wish I could scan what I got from my papers x)(

anonymous · Answer

ahh this s not 3d so it'll be simpler

anonymous · Answer

find the r'(t) and r''(t)

usukidoll · Answer

I am...but my hands are so sore I can't even type more lol

anonymous · Answer

|dw:1349596565500:dw|