KiArUnsYu
A punter kicks a football upward with an initial speed of 48 feet per second. After how many seconds does the ball hit the ground? Use the formula h = rt − 16t2 where h represents height in feet and r represents the initial speed.
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baldymcgee6
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at what height is the ball when it hits the ground?
KiArUnsYu
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I dont know. thats all the question gave
baldymcgee6
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Think about it.... |dw:1353221993622:dw|
KiArUnsYu
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0?
baldymcgee6
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exactly.
baldymcgee6
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So we can use the formula they gave us.
baldymcgee6
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|dw:1353222156125:dw|