How fast are the pebbles going

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Romeo is chucking pebblesgently up to Juliet's window, and he wants the pebbles to hit thewindow with only a horizontal component of velocity. He is standingat the edge of a rose garden 8.0m below her windowand 9.0m from the base of the wall. How fast are the pebbles going when they hit her window?

Reference no: EM13563528

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