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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 x = 18.0 t and y = 4.00 t – 4.90 t2, where x and y are in meters and t is in seconds.
(a) Write a vector expression for the ball’s position as a function of time, using the unit vectors   and .
 
By taking derivatives, obtain expressions for
(b) the velocity vector   as a function of time and
(c) the acceleration vector   as a function of time.
(d) Next use unit-vector notation to write expressions for the position, the velocity, and the acceleration of the golf ball at t = 3.00 s.

 

 

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Analyn Tolentino
Analyn TolentinoLv10
4 Jan 2021

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