Physics-ch-4/exercise 5
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Physics for Scientists and Engineers (9th Edition)

Chapter-4

Table of Content


Question 5





Q5: 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 = t and y = , 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 i ^ and j ^. By taking derivatives, obtain expressions for
(b) the velocity vector v S as a function of time and
(c) the acceleration vector a S 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 = s.