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Mathematics 7 Online
OpenStudy (anonymous):

A weather balloon is released and rises vertically such that its distance s(t) above the ground during the first 10 seconds of flight is given by s(t) = 7 + 2t + t^2, where s(t) is in feet and t is in second. Find the velocity and acceleration of the balloon at the instant the balloon is 51 ft above the ground.

OpenStudy (anonymous):

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