Let
p(
t) give the distance in meters from (0, 1) at time
t.
(a) Find the acceleration vector and,
(b) use it to calculate the acceleration at
t = 5
p/ 6 . Explain what the acceleration of the particle means in relation to its position at t = 2. I have differentiated the vectors to get: v(t)=<2,sin(t)> for velocity and a(t)<0,cos(t) > for acceleration.

cos(5pi/6)=0.866. Should this be the final answer for acceleration or should the answer be written in vector format? When the problem asks for acceleration, I believe it asking for the net acceleration, so that is why I used the pythagoream theorem to get 0.866.