Saturday

October 25, 2014

October 25, 2014

Posted by **:)** on Sunday, May 20, 2012 at 9:01pm.

- related rates -
**Damon**, Sunday, May 20, 2012 at 9:23pmh = height = 500 + 100 t

b = base = 1000

A = elevation angle. we want dA/dt

tan A = h/b = 100(5+t) / 1000 = .5 +.1 t

(1 /sec^2 A) dA/dt = 0 + .1

dA/dt = .1 sec^2 A

at this time ratio of b to h is 2/1

so hypotenuse is sqrt 5

cos A = 2/sqrt 5

sec A = sqrt 5/2

sec^2 A = 5/4

so

dA/dt = .1 (5.4) = .54 radians/second

or

31 degrees per second

sec A = 1/cos A = 1/(1000/(1000^2

**Answer this Question**

**Related Questions**

Math - An observer 2.5 miles from the launch pad of a space shuttle measures the...

Math - An observer 2.5 miles from the launch pad of a space shuttle measures the...

calculus - a rocket is launched vertically and travels at 100 meters per second...

Calculusss heeelp plzzz - A rocket is being tracked from a radar post that is ...

physics - The space shuttle has a mass of 2.0 × 106 kg. At lift-off the engines ...

Physics - (A) Identify how the gravitational potential energy changes as a ...

Geometry - Marion is observing the launch of a space shuttle from the command ...

calculus - shortly after taking off, a plane is climbing at an angle of 30° and ...

physics - the solid fuel rocket boosters used to launch the space shuttle are ...

calculussCalculuss ( pleassee heelp ) - Your Open QuestionShow me another » ...