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A slingshot fires a pebble from the top of a building at a speed of 16.1...

A slingshot fires a pebble from the top of a building at a speed of 16.1 m/s. The building is 30.4 m tall. Ignoring air resistance, find the speed with which the pebble strikes the ground when it is fired vertically straight up.

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Answer #1

Ho = 30.4m a f-Io Ignoring I :- air resistance I By energy consernation muf+mght = mvo?+ mg ho 0 Vo=16.imis hou. Ho = 30.4m/s

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