# physics

A hockey puck sliding on the ice with velocity 10m/sec is stopped by a goalie in 0.10sec. what is the goalie stopping distance ∆x in doing so.

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1. force=mass*10m/s /.10 sec= 100mass

but force*distance= 1/2 m v^2

distance= 1/2 m*100/100m= 1/2 meter

check my work.

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