# Crosby Rates Sara Getsy and Erin Ford- Mr. Weiland

- Author:
- Sara

Sidney Crosby hits a puck straight into the air at a rate of 4 ft/s. He then skates to the right at 2 ft/s. What is the rate of change between Crosby and the puck after 5 seconds? After 5 seconds,Evgeni Malkin, who is 40 ft to the right of the start position of the puck skates to the left at 3 ft/s.The puck continues it's path upward at 4 ft/s. What is the rate of change between Malkin and the puck after 5 more seconds?