during a hockey game a puck comes to the goal line with initial
velocity = 10 m/sec.  the goalie opposes the puck's ) mass = .25kg)
motion with a force = |f| = 0.25v^2.
what is the speed of the puck as a function of time.
what is the acceleration of the puck as a function of time
If the goal line is 5 cm across how long will it take for the puck to
cross the goal line ( a hocky puck is about 7 cm in diameter.

I need an answer today.

Well, as there is no hockey this season because of the strike, I hope
someone remembers what a hockey game consists of ;)

Steph53