|
Un article trouvé pour ce sujet.
 |
|
|
|
|
|
|
|
|
Velocity |
2007-04-04 |
|
Jessica pose la question :
The speed of the current in a river is 2mph. Jessica travels 20 miles upstream and then 20 miles downstream in a total time of 5 1/3 hr. Find the speed of the boat.
I know you have to use V= d/t, but what is the equation for time because you have to factor in that upstream the boat is slower and downstream the boat is faster?
Penny Nom lui répond. |
|
|
|
