problem08_24

University Physics with Modern Physics with Mastering Physics (11th Edition)

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

View Full Document Right Arrow Icon
8.24: Let Rebecca’s original direction of motion be the x -direction. a) From conservation of the x -component of momentum, , kg) 0 . 65 ( 53.1 m/s)cos kg)(8.0 (45.0 m/s) kg)(13.0 0 . 45 ( x v + ° = So s. m 67 . 5 = x v If Rebecca’s final motion is taken to have a positive - y component, then s. m 43 . 4 kg) 0 . 65 ( 53.1 sin s) m kg)(8.0 0 . 45 ( - = ° - = y v Daniel’s final speed is = + 2 2 y x v v s, m 20 . 7 s) m 43 . 4 ( s) m 67 . 5 ( 2 2 = - + and his direction is arctan
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ( 29 °-=-38 67 . 5 42 . 4 from the -x axis, which is ° 1 . 91 from the direction of Rebecca’s final motion. b) 2 2 2 s) m (13.0 (45.0) 2 1 ) s m (7.195 kg) . 65 ( 2 1 s) m (8.0 kg) . 45 ( 2 1-+ = ∆ K J. 680-= Note that an extra figure was kept in the intermediate calculation....
View Full Document

This document was uploaded on 02/04/2008.

Ask a homework question - tutors are online