A body falls freely from a height of50 m. Simultaneously, another body is thrown from a surface of the earth with a certain initial velocity. The two bodies meet at a height of10 m. What is the initial velocity of the second body?
A
4.9 m/s
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B
9.8 m/s
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C
17.5 m/s
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D
19.6 m/s
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Solution
The correct option is C 17.5 m/s let ball A dropped from top