Question: You shoot an arrow into the air. Two seconds later (2.00 s) the arrow has gone straight upward to a height of 30.0 m above

You shoot an arrow into the air. Two seconds later (2.00 s) the arrow has gone straight upward to a height of 30.0 m above its launch point.

(a) What was the arrow's initial speed?

(b) How much time did it take for the arrow to first reach a height of 15.0 m above its launch point?

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