Saturday
February 28, 2015

Homework Help: calculus

Posted by cynthia on Tuesday, January 11, 2011 at 12:12pm.

An athlete is running around a circular track of radius 50 meters at the rate of 5 meters per second. A spectator is 200 meters from the center of the track. How fast is the distance between the two changing when the runner is approaching the spectator and the distance between them is 200 meters?

I don't what equations to use.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - A car starts from rest and travels along a circular track with a ...
Physics - A car starts from rest and travels along a circular track with a ...
physical science - A car with a mass of 1,200 kilograms is moving around a ...
math - If the radius of a circular wave is increasing at 2 meters/sec, how fast ...
math - Charlie and Alexandra are running around a circular track with radius 60 ...
math - Running at an average rate of 4 meters per second, a sprinter ran to the ...
math - Running at an average rate of 4 meters per second, a sprinter ran to the ...
math - Running at an average rate of 4 meters per second, a sprinter ran to the ...
Math - A running track has 8 lanes each a meter wide.Each"straight" is 100 ...
calculus - a rocket is launched vertically and travels at 100 meters per second...

Members