- #1
ericcy
- 19
- 1
- Homework Statement
- A jet-ski driver wants to head to an island in the St.Lawrence River that is 5.0km [W20.0S] away. If he is traveling at a speed of 40.0km/h relative to the water and the St.Lawrence is flowing 6.0km/h [E], how long will it take him to reach the island?
- Relevant Equations
- v=d/t
I've looked it up online and someone did t=40−65=0.15(h)
I was just wondering why they would subtract the velocities. Could something explain this to me please? thanks.
I was just wondering why they would subtract the velocities. Could something explain this to me please? thanks.