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 Sharks Goalie Wade Flaherty is just outside the crease after clearing the puck down the ice.

Just how fast is a goalie's reaction time?

Let's see what reaction time is required of Sharks Goalie Kelly Hrudey when an opposing player launches a speedy slapshot towards the net. If the opposing player has time to tee up and get solid wood on the puck, Hrudey could easily be facing a shot of up to 90 mph. The reaction time of the goalie can be calculated using the equation

 Time= distance rate

Describing motion is a part of mechanics known as kinematics. Physicists call this a kinematic equation.

If someone shoots from the blue line, a rather generous distance of 60 feet, the time it takes for the puck to travel to the net is

 Time d = 60 ft r 90 mph

To translate 90 mph into feet per second (5280 feet =1 mile/ 3600 seconds =1 hour), then
90 x 5280 = 475, 200 feet per hour.

 475, 200 = 132 feet per second = 90 mph 3600

 60 feet = .456 seconds 132 feet per second

This doesn't allow very much time for the goalie to move himself and all that equipment over to save the puck. Try testing your own reaction time, for a better understanding of what a goalie has to do.