Example 5 Pete lives directly north of the big oak tree at the park. Lindy lives directly east of the same tree. At 5pm they both left the tree heading for their homes. Lindy was running at 5 m/s. Pete was strolling at 1 m/s. After 10 minutes, how far apart were Lindy & Pete AND how quickly was the distance between them changing? Round both answers to 1 decimal place