Question

determine the center of gravity of cardiode r = a(1+cos theta) by using double integral...

Answer 1

Because no delta is given, consider density uniform. To find center of gravity, find dA or the area as you did in other problems.

Answer 2

well....but we should know the limitation of the double integral....isn't it?

Answer 3

That is part of the problem. You are given the radius, it starts at zero and ends at that thing. You can punch that thing in a calculator and know it is similar to a circle.

Answer 4

don't we needa draw the sketch of it, then we can find the limitation?