Answer to Question #116787 in Calculus for Olivia

Question

Suppose a particle moves through space so that its position vector at time t is r(t). Then its velocity vector is:

a. r′(t)


b. r′′(t)


c. the zero vector


d. r(t)

Answer 1

v=dr/dt=r’(t)

Answer: a. r’(t).