AnswersAP Calculus AB - MA5186 ASlope, Tangent Line, and Normal LineQuestion 1
1
AssignmentMultiple Choice

Slope, Tangent Line, and Normal Line

Question 1 • AP Calculus AB - MA5186 A

A ball is dropped from the roof of a building, and its height (in feet) is modeled by the functionf(t) = −16t2 + 80where t is measured in seconds. What is the speed of the ball exactly 4 seconds after it was dropped?

Answer
A
128 ft/sec
B
144 ft/sec
C
160 ft/sec
D
208 ft/sec
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