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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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