hey ppl! have just started a course in lagrangian mechanics and it hasnt been the easiest thing. Ahemm, Anywayz we have a assigment to hand in I just dont know how to do these questions. You have to(adsbygoogle = window.adsbygoogle || []).push({});

1. Name cartesian co-ordinates which fully specify the position of all the moving masses in the system.

2. Obtain expressions giving each of the cartesian co-ordinates as functions of the genralised co-ordinates.

]Could any of you show me how to do these 2 and I will try do the rest by myself.]

a. A plastic knife flying through the air

b.A piece of chalk rolling without slipping inside a stationary cardboard roll, but with slippage allowed between the chalk and the board.

Thanx. moo

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# Homework Help: Help would be realy good now.

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