On Earth, the quadratic relation h = -5t2 + ut + ho can be used to determine the height of an object that has been thrown as it travels through the air, measured from a reference point. In this relation, h is the height of the object in metres, t is the time in seconds since the object was thrown, u is the initial velocity, and ho is the initial height. Ash throws a pokeball upward from a second-floor balcony, 6 m above the ground, with an initial velocity of 2 m/s. In this situation, u = 2 and ho = 6, so the relation that models the height of the pokeball is h = -5t2 + 2t + 6. Ash knows that changing the velocity with which he throws the pokeball will change the maximum height of the pokeball. Ash wants to know with what velocity he must throw the pokeball to makepass over a tree that is 11 m tall in order to catch that pokemon.

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