A spacecraft moves along a path described by the parametric equations shown below for the first 200 s after launch. Here, x and y are measured in meters, and t is measured in seconds. Find the magnitude and direction of the velocity of the spacecraft 20.0 s and 200 s after launch. x =70 (V1 + +4 - 1), y= 40+3/2 What would be the first step in finding the velocity of the spacecraft at a given time? O A. Find the values of x and y for the given value of t. O B. Use the fact that distance = rate x time. O C. Differentiate y with respect to x. O D. Differentiate the x- and y-position components to get the x- and y-velocity components. Find the magnitude of the velocity of the spacecraft when t= 20.0 s. The magnitude is approximately m/s. (Round to the nearest integer as needed.) Find the direction of the velocity of the spacecraft when t= 20.0 s. Enter an angle 0 such that 0 s 0