Number of results: 207,914
A [B]ship P [/B] is travelling due [B]East at 30 km/h[/B] and a [B]Ship Q[/B] is travelling due [B]South at 40 km/h. [/B] Both ships keep constant speed and course. [B]At t=0 they are each 10 km [/B] from the point of intersection of their courses and moving towards the point...
Saturday, July 15, 2006 at 10:39am by rav
Hey, I have a question on related rates and I'm a little rusty at them. I have an idea how to do this one but at a certian point i get stuck. The question is: Two cars leave the intersection, the first travelling south at 40 km/hr and another travelling west at 90 km/hr. How ...
Thursday, November 2, 2006 at 6:56pm by Tracy
I also have another question (I'm not doing too good one these realted rates). A camera, located 2 km from the launch pad, is tracking the rocket that is fired straight up. When the height of the rocket is 20 km, the camera is rotating at the rate of 1/200 radians per second. ...
Thursday, November 2, 2006 at 7:26pm by Tracy
More related rates.
Heyy, its me again. So last night I asked a related rate question, and I think I still don't get it. I tried it a few differnt ways and I think I'm just missing something...I don't think a speed of a rocket can be 0.018km/hr:S. So heres what happened: A camera, located 2 km ...
Friday, November 3, 2006 at 4:02pm by Tracy
Math (Related Rates)
I was working on some questions for homework and for some reason cannot understand how to approach this question A camera, located 5 km from the launch pad, is tracking the rocket that is fired straight up. When the height of the rocket is 12 km, the camera is rotating at the ...
Sunday, November 5, 2006 at 5:21pm by Avik
Math (related rates)
My question is similar to Avik's but with different values. A camera, located 4 km from the launch pad, is tracking the rocket that is fired straight up. When the height of the rocket is 13 km, the camera is rotating at the rate of 3/169 radians per second. What is the speed ...
Sunday, November 5, 2006 at 5:31pm by Sally
Math - Calculus
Im trying to understand related rates here and im getting stuck at this word problem. It says if V is the volume of a sphere with radius r, and the volume of the sphere decreases as the time passes. express dV/dt in terms of dr/dt. Describe the relationship in words. I dont ...
Thursday, December 7, 2006 at 1:57am by Cosmo
related rates with work shown
this is a relate rates problem in calculus in a right triangle, the hypotenuse is 5 and the vertical side is x and the angle is theta. so if theta increases at a constant rate of 3 radians per minute, at what rate is x increasing in units per minute when x equals 3 units? d(...
Sunday, April 15, 2007 at 2:36pm by Anonymous
A lamp post is 6m tall. Frank is 1.6 m and walks toward the post at .5m/s. How fast is the tip of his shadow moving when he is 8 m from the pole? http://answers.yahoo.com/question/index?qid=20070405145054AANaa0r
Monday, April 16, 2007 at 7:33pm by Frank
Related rates are quite difficult. I'm still mastering them. I would recommend googling "related rates" without the quotes. There is a great website called "Pauls Online Notes: Calculus I - Related Rates" that gives detailed analyses for many different problems. There are ...
Wednesday, November 21, 2007 at 9:01pm by Michael
FIND THE UNIT RATES AND WRITE THEM BOTH IN FRACTION AND WORD FORM. 7.Gabrielle bikes 78 miles in 6 hours.
Tuesday, September 23, 2008 at 5:23pm by DEANZA
Huge Math Word Problem
I just reread the question again and it seems to me more a tax-related problem than math related problem. This may mean that the depreciation permitted (by the IRS) is uniformly 1/27.5 of its present value every year. So the annual depreciation (fixed) amount is 85000/27.5= is...
Friday, October 9, 2009 at 6:45pm by MathMate
Calculus - Related Rates
Bacteria are growing in a circular colony one bacterium thick. The bacteria are growing at a constant rate, thus making the area of the colony increase at a constant rate of 12 mm sq. per hour. Find an equation expressing the rate of change of the radius as a function of the ...
Sunday, November 29, 2009 at 5:42pm by Joel
Resolved QuestionShow me another » AP Calculus related rates problem? The volume V or a cone (V = 1/3 ð r² h) is increasing at a rate of 28ð cubic units per second. At the instant when the radius r of the cone is 3 units, its volume is 12ð cubic units and the radius is ...
Saturday, December 19, 2009 at 11:19am by kelli
Related Rates Problem
A runner sprints around a circular track of radius 150 m at a constant speed of 7 m/s. The runner's friend is standing at a distance 300 m from the center of the track. How fast is the distance between the friends changing when the distance between them is 300 m? (Round to 2 ...
Friday, October 1, 2010 at 1:45pm by Calculus
Related Rates: Gas is escaping from a spherical balloon at the rate of 2ft^3/min. How fast is the surface area shrinking (ds/dt) when the radius is 12ft? (A sphere of radius r has volume v=4/3 pi r^3 and surface area S=4pi r^2.) Remember that ds/dt = ds/dr X dr/dt Step 1: Find...
Friday, March 4, 2011 at 10:31pm by Hannah
I posted this question a few days ago and someone answered it but I just wanted to make sure that I copied down the correct answers and didn't misunderstand anything. Related Rates: Gas is escaping a spherical balloon at the rate of 2ft^3/min. How fast is the surface area ...
Monday, March 7, 2011 at 3:14pm by Hannah
Math(Please help. Thank you)
Is number 3 considered a related rates problem?
Sunday, May 1, 2011 at 9:41am by Hannah
Math, Related Rates
Consider the hyperbola y = 1/x and think of it as a slide. A particle slides along the hyperbola so that its x-coordinate is increasing at a rate of f(x) units/sec. If its y-coordinate is decreasing at a constant rate of 1 unit/sec, what is f(x)? -I arrived at the answer f(x...
Tuesday, September 10, 2013 at 9:40am by xavier
Math, Related Rates
y = 1/x dy/dt = -1/x^2 dx/dt -1 = -1/x^2 dx/dt dx/dt = x^2 Looks good to me.
Tuesday, September 10, 2013 at 9:40am by Steve