Homework Help: Calculus

Posted by math whizz on Monday, December 5, 2011 at 9:12pm.

Ice is forming in a pond at a rate given by dy/dx=ksqrt(t), where y is the thickness of the ice in cm at time t measured in hours since the ice started forming, and k is a positive constant. Find y as a function of t.

Calculus - MathMate, Monday, December 5, 2011 at 9:21pm
dy/dx=ksqrt(t)
dy=ksqrt(t)dt
Integrate both sides:
y=k(2/3)t^(3/2) + C
where C is an integration constant determined from initial conditions.

Thus
y = (2k/3)t^(3/2) + C

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