A golf ball is hit off a tee at the edge of a cliff. Its x and y coordinates as functions of time are given by the following expressions:
x = (18.0 m/s) t
Andy = (4.00 m/s) t - (4.90 m/s2) t2
(a) Write a vector expression for the ball's position as a function of time, using the unit vectors ˆi and ˆj. By taking derivatives, obtain expressions for (b) The velocity vector v as a function of time and (c) The acceleration vector a as a function of time. Next use unit-vector notation to write expressions for (d) The position, (e) The velocity, and (f) The acceleration of the golf ball, all at t = 3.00 s.