A water balloon launched from the roof of a building at time t = 0 has vertical velocity
Chapter 6, Problem 14(choose chapter or problem)
A water balloon launched from the roof of a building at time t = 0 has vertical velocity v(t) = 32t + 40 feet/sec at time t seconds, with v > 0 corresponding to upward motion. (a) If the roof of the building is 30 feet above the ground, find an expression for the height of the water balloon above the ground at time t. (b) What is the average velocity of the balloon between t = 1.5 and t = 3 seconds? (c) A 6-foot person is standing on the ground. How fast is the water balloon falling when it strikes the person on the top of the head?
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