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)tand y = (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 ? and j. 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 = 3.00s.

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Projectile Motion