Posted by **hiba** on Monday, February 27, 2012 at 11:03am.

Miguel is driving his motorboat across a river. The speed of the boat in still water is 10 mi/h. The river flows directly south at 3 mi/h. If Miguel heads directly west, what are the boat’s resultant speed and direction? Round answers to the nearest tenth.

- geometry -
**Steve**, Monday, February 27, 2012 at 2:04pm
you have a right triangle with legs 3 and 10.

The resultant speed is the hypotenuse: √(36+100) = √136 = 11.7

direction is W θ S

where tanθ = 3/10, so that's W16.7°S

- geometry -
**Irene**, Sunday, March 11, 2012 at 4:03pm
the resultant speed is the hypotenuse

9+100=109

√109=10.4

## Answer This Question

## Related Questions

- math - 20. Miguel is driving his motorboat across a river. The speed of the boat...
- math - The speed of a powerboat in still water is 35 mi/h. It is traveling on a ...
- vectors components - plz answer my question a river is 2 km wide and flows at ...
- Vectors - a river is 2 km wide and flows at 4km/h. a motorboat has a speed of 10...
- physics - A boat heads directly west across a river at 8.0 m/s while the river ...
- Physics - A current of a river flows steadily from west to east at 1.00 m/s. A ...
- Physics - The captain of a boat wants to travel directly across a river that ...
- Need Help Physics - The captain of a boat wants to travel directly across a ...
- Geometry - You are boating and heading directly west. The speed of the boat in ...
- Physics - A motorboat heads due east at 8.5 m/s across a river that flows to the...

More Related Questions