# Question: A hockey puck sliding along the ice to the left

A hockey puck sliding along the ice to the left hits the boards head-on with a speed of 35 m/s. As it reverses direction, it is in contact with the boards for 0.095 s, before rebounding at a slower speed of 11 m/s. Deter-mine the average acceleration the puck experienced while hitting the boards. Typical car accelerations are 50 m/s2. Comment on the size of your answer, and why it is so different from this value, especially when the puck speeds are similar to car speeds.

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