Romeo is chucking pebbles gently up to Juliet€™s window, and he wants the pebbles to hit the window with only a horizontal component of velocity. He is standing at the edge of a rose garden 4.5 m below her window and 5.0m from the base of the wall (Fig. 3-34). How fast are the pebbles going when they hit her window?

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4.5 m 5.0 m