74 kg rock is projected from the edge of the top of a

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74 kg rock is projected from the edge of the top of a

A 0.74 kg rock is projected from the edge ofthe top of a building with an initial velocity of8.31 m/s at an angle 42◦above the horizontal.Due to gravity, the rock strikes the ground ata horizontal distance of 14.2 m from the baseof the building.Building14.2 m428◦.31 m/shHow tall is the building? Assume theground is level and that the side of the building is vertical. The acceleration of gravity is9.8 m/s2.Answer in units of m

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