Vertical Motion In Exercises 7780, use feet per second per second as the acceleration
Chapter 5, Problem 80(choose chapter or problem)
Vertical Motion
In Exercises 77–80, use a(t) = - 32 feet per second per second as the acceleration due to gravity. (Neglect air resistance.)
A balloon, rising vertically with a velocity of 8 feet per second, releases a sandbag at the instant it is 64 feet above the ground.
(a) How many seconds after its release will the bag strike the ground?
(b) At what velocity will it hit the ground?
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