problem04_05

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
4.5: Of the many ways to do this problem, two are presented here. Geometric: From the law of cosines, the magnitude of the resultant is . N 494 60 cos ) N 300 )( N 270 ( 2 ) N 300 ( ) N 270 ( 2 2 = ° + + = R The angle between the resultant and dog A ’s rope (the angle opposite the side corresponding to the 250-N force in a vector diagram) is then ( 29 . 7 . 31 N 494 ) N 300 ( 120 sin arcsin ° =
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Components: Taking the x +-direction to be along dog A s rope, the components of the resultant are N 420 60 cos ) N 300 ( ) N 270 ( = + = x R , N 8 . 259 60 sin ) N 300 ( = = y R so ( 29 . 7 . 31 arctan , N 494 ) N 8 . 259 ( ) N 420 ( 420 8 . 259 2 2 = = = + = R...
View Full Document

Ask a homework question - tutors are online