Hockey Puck Speed

Physics question – for tomoro – procedure? : A ref drops a hockey puck and it reaches a speed of 5.6m/s?
(right before it strikes the ice)
a ) Assuming free fall, how long did it take to fall to the ice?
b ) From what height above the ice did the referee drop it from?
No other information is given… although i know the gravity will pull it 9.8 m/s^2… i’m not sure how to work it out
a) .57 seconds (t= v/a)
b) 3.2 meters( d= .5a*t^2)
Hockey Stick and Puck 220 FPS High Speed
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