Thursday

November 27, 2014

November 27, 2014

Posted by **Judy** on Sunday, September 18, 2011 at 5:52pm.

- Physics -
**drwls**, Sunday, September 18, 2011 at 8:52pmThe question should clarify that 3 km/h is the kayak velocity with respect to the water, which would be the velocity in still water, rowing at the same power level. It is NOT the actual velocity as seen from shore, whjich is higher, since the kayer is paddling downstream.

Vkl = Vkw + Vwl, where:

Vkl is the velocity of the kayak with respect to land;

Vkw is the velocity of the kayak with respect to the water;

Vwl is the velocity of the water with respect to the land (i.e, the stream velocity of + 4 km/h).

Solve for Vkl

4 + 3 = ___ ?

- Physics -
**Anon having exam tomorrow**, Monday, January 28, 2013 at 3:14pmIn this case you must use the Pyth. Theorem.

so: 3^2 + 4^2 = c^2

9+16=c^2

c^2=25

c=5m/s

the answer is correct, but I cannot ensure you that the way to do it is 100%ly correct

**Answer this Question**

**Related Questions**

physics - A person in a kayak starts paddling, and it accelerates from 0 to 0.59...

physics - A person in a kayak starts paddling, and it accelerates from 0 to 0....

Physics - A person in a kayak starts paddling, and it accelerates from 0 to 0....

Science - when a kayak races downstreamm, its speed is clocked at 3 m/s. How far...

science - At the speed of 2.5 m/s, how many seconds will it take the kayak to ...

science - Thank you. I don't know if this one is right- At the speed of 2.5m/s, ...

science - If a river is flwoing downstream at a velocity of 2.5 m/s how fast ...

Math - Steve can kayak at 8 km/h in still water. On the river, Steve and the ...

math - a kayak travels 15/h in still water and if the current flows at a rate a ...

physics - A boat heads directly across a river 39 m wide at 3.9 m/s. The current...