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Question

A rock is thrown up in the air at 30 ft/second. It has height in feet
given by H(t) = −16t
2 + 30t. When does the rock have a velocity equal 10
ft. per a second?
10 years ago

Answers

Steve
v(t) = 30-32t

so, when is

30-32t = 10 (going up)?
30-32t = -10 (coming down)?
10 years ago

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