A ball is thrown horizontally from the top of a 20-m high hill.It strikes the ground at an angle of 45$\degree$.With what speed was it thrown? Use g = 10 m/s². A)14 m/s B)20 m/s C)28 m/s D)32 m/s E)40 m/s

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The Answer of A ball is thrown horizontally from the top of a 20-m high hill.It strikes the ground at an angle of 45$\degree$.With what speed was it thrown? Use g = 10 m/s². A)14 m/s B)20 m/s C)28 m/s D)32 m/s E)40 m/s

A Ball Is Thrown Horizontally from the Top of a 20-M