Question: A model rocket is launched with an initial upward velocity of 57/ms. The rocket's height h (in meters) after t seconds is given by the

A model rocket is launched with an initial upward velocity of 57/ms. The rocket's height h (in meters) after t seconds is given by the following.

h=57t-5t^2

Find all values of t for which the rocket's height is 29 meters.

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