Wednesday

March 4, 2015

March 4, 2015

Posted by **Andres** on Monday, October 10, 2011 at 11:18pm.

- Calculus -
**Steve**, Tuesday, October 11, 2011 at 4:17amtan(a) = h/200

sec^2(a) da/dt = 1/200 dh/dt

da/dt = 1/200 cos^2(a) dh/dt

When t=30, h = 4*30 = 120m

tan(a) = 120/200 = 0.6

so, cos(a) = 0.857

da/dt = .005 * 0.857^2 * 4 = .0147 rad/s

That's roughly pi/68 rad/s

- Calculus -
**Glenn**, Thursday, April 19, 2012 at 6:06amWere you drunk when you posted this Steve?

**Answer this Question**

**Related Questions**

Calculus - an observer stands 200 m from the launch site of a hot-air balloon. ...

Calc - an observer stands 200 m from the launch site of a hot-air balloon. the ...

Calc - 2) A hot air balloon rising vertically is being tracked by an observer on...

math - an observer is standing 200 meters from a hot air ballon, when is rising ...

calculus - A hot air balloon rising vertically is tracked by an observer located...

differential calculus - ANGLE OF ELEVATION A balloon rises at a rate of 4 meters...

Calculus - A hot air balloon rising vertically is tracked by an observer located...

Calculus - A balloon leaves the ground 500 feet away from an observer and rises ...

calculus : related rates - a balloon rises at a rate of 3 meters per second from...

trig - as a hot air balloon rises vertically, its angle of elevation from point ...