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OpenStudy (anonymous):
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OpenStudy (anonymous):
Which equation would best help solve the following problem? Rita hits a tennis ball with an intial vertical velocity of 15 m/s. When she hits the ball, it is 1 m above the ground. How long will it take for the ball to hit the ground? A. -4.9t^2 + 15t + 1 = 0 B. 4.9t^2 + 15t + 1 = 0 C. -4.9t^2 + 15t = 1 D. -16t^2 + 15t + 1 = 0
rebeccaxhawaii (rebeccaxhawaii):
any ideas?
OpenStudy (anonymous):
I'm thinking D? I have no idea.
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