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If a ball is thrown straight down with an initial speed of 18 ft/s, what is...

If a ball is thrown straight down with an initial speed of 18 ft/s, what is the magnitude (ft/s) of the ball's velocity when it hits the ground?  The ball starts at 50 ft in the air.

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u 18 ft v2 (18 )2 + 2 (32.2) (50) V2= 32q + 3220 V3544 V 59.5 31 ft

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