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Billy is running on level ground with a speed of 3.5 m/s. He attempts to jump a ditch that is 1.5 meters wide. if the horizontal component of his velocity does not chance, determine the minimum vertical component of velocity when he jumps if the ground on the other side of the ditch is:

A. level with his launch point

B. 0.5 m above his launch point

C. 0.5 m below his launch point

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