ch09-p042 - 42. Our +x direction is east and +y direction...

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42. Our + x direction is east and + y direction is north. The linear momenta for the two m = 2.0 kg parts are then G G pm vm v 111 == # j where v 1 = 3.0 m/s, and G G v v m v xy 22 2 2 + = + ## cos ij i s i n j 2 e j e j θθ where v 2 = 5.0 m/s and θ = 30°. The combined linear momentum of both parts is then () ( ) ( ) ( ) ( ) 12 1 2 2 1 2 ˆˆ ˆ ˆ ˆ j cos i sin j cos i sin j 2.0 kg 5.0 m/s cos30 i 2.0 kg 3.0 m/s 5.0 m/s sin30 j 8.66i 11j kg m/s. Pp p m v m v m v m v =+= + + = + +
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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