Tuesday

September 2, 2014

September 2, 2014

Posted by **Leah** on Saturday, February 6, 2010 at 10:48pm.

E(v)= (aLv^3)/(v-u)

Where E is measured in foot-pounds and a is a constant.

a) Evaluate the limit of E(v) as v-->u+ and interpret your result

b) Evaluate the limit of E(v) as v-->infinity and interpret your result

- Calculus (for Business) -
**drwls**, Saturday, February 6, 2010 at 11:38pma) as v -> u the Energy required becomes infinite because the fish does not move and requires infinite time to go a distance L.

b) as v--> infinity, the energy required is proportional to v^2 (which is true for the fluid drag force), as the stream velocity becomes negligible compared to v.

Energy = force x distance.

- Calculus (for Business) -
**Leah**, Monday, February 8, 2010 at 12:30amCould you please show me the math behind answer a? How did you calculate the limit to get infinity?

**Answer this Question**

**Related Questions**

Math - Calculus - Water is flowing in a cylindrical pipe of radius 1 inch. ...

physics - Consider the swimmer in the figure below. Suppose that his swimming ...

physics - Suppose that the swimmer in the figure below has a swimming speed ...

physical science - a 5 kg fish swimming at a speed of 1m/s swallows an absent ...

Physics - A swimmer wants to cross a river, from point A to point B, as shown in...

physics - Chinook salmon are able to move through water especially fast by ...

Help...More Math Help!!!...Please! - A kayaker paddled 2 hours with a 6 mph ...

calculus - The voltage V (volts), current I (amperes), and resistence R (ohms) ...

math - While on vacation, Kevin went for a swim in a nearby lake. Swimming ...

math - donna took 3hours to row 18 km upstream. her return trip took 1 hour less...