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You throw a ball vertically upward with a velocity of 10 m/s from a window located...

You throw a ball vertically upward with a velocity of 10 m/s from a window located 20 m above the ground. Knowing that the acceleration of the ball is constant and equal to 9.81 m/s^2 downward, determine (a) the velocity v and elevation y of the ball above the ground at any time t, (b) the highest elevation reached by the ball and the corresponding value of t, (c) the time when the ball hits the ground and the corresponding velocity. (draw the v-t and y-t curves)

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