Monday

September 22, 2014

September 22, 2014

Posted by **Reem** on Wednesday, February 19, 2014 at 3:08pm.

- PHYSICS -
**Damon**, Wednesday, February 19, 2014 at 3:19pmrowing speed = v

speed upstream = (v-c)

speed downstream = (v+c)

(v+c) * 2 = 10

(v-c) * 4 = 10 or (v-c) * 2 = 5

2 v + 2 c = 10

2 v - 2 c = 5

------------------add

4 v = 15

v = 15/4 = 3.75 km/hr

**Answer this Question**

**Related Questions**

phisecs - A girl rows 11 km downstream in 2 h. Her return trip takes 3 h. How ...

PHYSICS - A girl rows 10 km downstream in 2 h. Her return trip takes 3 h. How ...

phisecs - A girl rows 11 km downstream in 2 h. Her return trip takes 4 h. How ...

Math - Sam rows up a river to camp in 3 hours. The next day he makes the return ...

algebra1 - Sam rows up a river to camp in three hours.The next day he makes ...

Math - 3). Sam rows up a river to camp in three hours. The next day he makes the...

math - a man rows downstream for one hour and 40 minutes on a river flowing at 2...

Algebra - Briana can row 4 miles per hour is still water. It takes as long to ...

math - a man can row a bangka at a rate of 5 km/h in still water. It takes 10 ...

math 116 - A Coast-Guard patrol boat travels 4 hr on a trip downstream with a 6-...