# Physics help?

A ball is thrown straight up and reaches a

maximum height in 8.16 s.What was its initial speed? The acceleration

of gravity is 9.8 m/s

2

.

Answer in units of m/s.

maximum height in 8.16 s.What was its initial speed? The acceleration

of gravity is 9.8 m/s

2

.

Answer in units of m/s.

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