Recent content by LinK9527

what class is this?.. anyway, i have the same questions. i think we should find|r|, and solve it with r^2 is more convinient. since r^2=x^2+y^2 and solve implicitly? but i got a mess and can't really solve this. all the 4 questions i have give me headache...

then how to start part b?

i have a question, if i got vector r= (something)x-hat+(something)y-hat, how would i counvert it into polar form? i was thinking that if we find the first derivative of the polar form of r, the distance will be contineously increasing if the first derivative is greater than 0?