After how many seconds does the ball hit the ground

Reference no: EM13202293

if a ball is thrown vertically upward at 30 m/s, then its approximate height in meters t seconds later is give by (h)t= 30t - 5t^2.

a. After how many seconds does the ball hit the ground?
b. What is the domain of h?
c. how high does the ball go?

Reference no: EM13202293

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