Posted by **Christina** on Thursday, September 13, 2012 at 6:52pm.

Sheena can row a boat at 2.90 mi/h in still water. She needs to cross a river that is 1.22 mi wide with a current flowing at 1.55 mi/h. Not having her calculator ready, she guesses that to go straight across, she should head 60.0° upstream.

(a) What is her speed with respect to the starting point on the bank?

(b) How long does it take her to cross the river?

(c) How far upstream or downstream from her starting point will she reach the opposite bank?

(d) In order to go straight across, what angle upstream should she have headed?

## Answer This Question

## Related Questions

- physics - Sheena can row a boat at 3.13 mi/h in still water. She needs to cross ...
- PHYSICS - Sheena can row a boat at 2.91 mi/h in still water. She needs to cross ...
- PHYSICS - Sheena can row a boat at 2.91 mi/h in still water. She needs to cross ...
- physics - Trevor can row a boat at 3.00 mi/hr in still water. He needs to cross ...
- physics - Mary needs to row her boat across a 120 m -wide river that is flowing ...
- physics - A boat heads directly across a river 39 m wide at 3.9 m/s. The current...
- physics - A man wished to travel due north in order to cross river 5kilometer ...
- physics - the water in a 0.5 km wide river is flowing at 5 m/sec from west to ...
- Physics - A man which travel due north in other to cross a river 5km wide ...
- science - A boat crossing a .2 mile wide river is heading perpendicularly ...

More Related Questions