Determine with what speed was the rock thrown

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Reference no: EM13529202

A rock is thrown from the top of a 30 m building at an angle of 47° above the horizontal. (Ignore any effects due to air resistance.)

(a) If the horizontal range of the throw is equal to the height of the building, with what speed was the rock thrown?

m/s

(b) How long is it in the air?

= ( m/s) + ( m/s)

Reference no: EM13529202

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