- #1
Emely
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A ball is thrown straight up from ground level. After a time 6.1 s, it passes a height of 136.1 m. What was its initial speed? The accelera-
tion due to gravity is 9.8 m/s2 . Answer in units of m/s.
tion due to gravity is 9.8 m/s2 . Answer in units of m/s.