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Posted by **Joey** on Wednesday, January 5, 2011 at 9:31am.

(a) What is its angular momentum relative to the origin at this moment?

1 kg · m2/s

(b) What is its angular momentum relative to the point (-2.0, -2.0) m at this same moment?

2 kg · m2/s

- physics -
**MC**, Friday, January 7, 2011 at 3:21pm1(a)

r = (3 -4); p = 1.8x(20 30)

r X p = 1.8[ 3x50 - (-4x20)] = 1.8x(150 + 80)

= 1.8x230 = 414 kg m2/sec

1(b)

r = (3 - (-2), -4 - (-2)) = ( 5 -2)

similarly

r X p = 522 kg m2/sec

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