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Physics 10 Online
OpenStudy (anonymous):

At time t=0, a ball is thrown straight down from the top of a 384-foot building with an initial velocity of -32 feet/second. (a) When does the ball hit the ground? (b) What is the ball's velocity after falling 128 feet? (c) What is the ball's velocity at impact? Note: This problem requires the equation: s(t) = -16t^2 + v₀t + s₀

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