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Problem: A ball is thrown in a horizontal direction from the roof of a building with an initial speed of 20 m/s. The ball strikes the ground 120 m from the base of the building as shown.
Part A: How high is the building?
Please show complete calculation thanks!
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question1a uniform bar of length 46 m and mass 3 kg is attached to a wall with a hinge that exerts a horizontal force
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