A rock is thrown from a height of 2.0 m at a window that is located 9.0 m above the ground. The initial velocity of the rock is 20 m/s, and it is thrown at an angle of 40∘∘ above the horizontal. If the rock strikes the window on the upward trajectory, what is the horizontal distance between the person throwing the rock and the window? Assume no air resistance

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Projectile Motion