An oil tanker runs aground and begins to leak.

Question

An oil tanker runs aground and begins to leak. The slick is circular and its radius in feet is given by r(t)=.2√t where t is in minutes. Express the circumference, C, as a function of time, t

Answer 1

Faatimah, you would start with writing an equation for the circumference of a circle in which is:

 

C(t)=2*pi*r(t)

 

Hence,

 

C(t)=2*pi*.2√t 

 

C(t)=.4*pi*√t