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#1 2008-05-16 07:04:59

yonski
Member
Registered: 2005-12-14
Posts: 67

Polar coordinates

Hi there, i'm a bit stuck on the question:

A particle P describes the equianglar spiral with polar coordinates r = ae^θ in such a way that its acceleration has no radial component. Show that

(a) the speed of the particle is proportional to r
(b) the magnitude of the acceleration is proportional to r.

I've sat and fiddled with it for a bit but couldn't seem to get very far. Any help appreciated :-)


Student: "What's a corollary?"
Lecturer: "What's a corollary? It's like when a theorem has a child. And names it corollary."

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