r=(5sin4t, 8cos4t, 5t^2 + 16t +3?

Question

(i) Find the x component of the velocity vector at time t = 2.5?

(ii) Find the y component of the velocity vector at time t = 2.5?

(iii) Find the z component of the velocity vector at time t = 2.5?

(iv) Find speed t = 2.5?
(v) Find the x component of the acceleration vector at time t = 2.5?

(vi) Find the y component of the acceleration vector at time t = 2.5?

(vii) Find the z component of the acceleration vector at time t = 2.5?

Answer 1

A calculator would be a great help with this, don't you think?