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A ball is thrown upward from a height of 3m at an initial speed of 45...

A ball is thrown upward from a height of 3m at an initial speed of 45 m / sec. Acceleration resulting from gravity is -9.8 m/sec^2. Neglecting air resistance, solve for the velocity, v(t), and the height, h(t), of the ball t seconds after it is thrown and before it hits the ground.
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