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

question 48

Multiple Choice

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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