# 4. A golf ball is struck from the top of a building. The height of the...

###### Question:

4. A golf ball is struck from the top of a building. The height of the ball above the ground is given by the equation: h(t) = -5t? + 20t + 60, where his in meters and t in seconds. a) Determine the average rate of change (average velocity) over the interval 35156 seconds. b) Determine the instantaneous rate of change (instantaneous velocity) at t = 3 seconds. Use at least four decimal place accuracy in your calculations.

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