ch09-p072 - 72. (a) Conservation of linear momentum implies...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
72. (a) Conservation of linear momentum implies mv AA BB A A B B G G G G += + '' . Since m A = m B = m = 2.0 kg, the masses divide out and we obtain ˆˆ ˆ ˆ ˆ ˆ (15i 30j) m/s ( 10i 5j) m/s ( 5i 20 j) m/s (10i 15 j) m/s . BA B A vv v v ′′ =+−= + + + + =+ G GGG (b) The final and initial kinetic energies are Km vm v v fA B iA B =+= + + + = × + + + = × 1 2 1 2 1 2 20
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

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.

Ask a homework question - tutors are online