Joe and John are holding the ends of an elastic thread at a point O. Joe starts moving towards the east at a speed of 8 ms−1 and John, towards North at a speed of 15 ms−1. If the maximum length the elastic could attain was 170m, how long could they move till the elastic breaks (in seconds)? Both started moving at the same time.

Joe and John are holding the ends of an elastic thread at a point O. J

1.	Joe and John are holding the ends of an elastic thread at a point O. Joe starts moving towards the east at a speed of 8 ms−1 and John, towards North at a speed of 15 ms−1. If the maximum length the elastic could attain was 170m, how long could they move till the elastic breaks (in seconds)? Both started moving at the same time.
Answer» Joe and John are holding the ends of an elastic thread at a point O. Joe starts moving towards the east at a speed of 8 ${m s}^{- 1}$ and John, towards North at a speed of 15 ${m s}^{- 1}$ . If the maximum length the elastic could attain was 170m, how long could they move till the elastic breaks (in seconds)? Both started moving at the same time.