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A 0.57 kg rock is projected from the edge of the top of a building with an initial velocity of 8.53 m/s at an angle 42° above the horizontal.

Due to gravity, the rock strikes the ground at a horizontal distance of 12.5 m from the base of the building.How tall is the building?

Assume the ground is level and that the side of the building is vertical. The acceleration of gravity is 9.8 m/s%.

Answer in units of m.