Adding Vectors: 28lb, 45° North-West & 15lb North

Thread starter drkidd22
Start date May 5, 2010
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Vectors

AI Thread Summary

The discussion focuses on adding two vectors: a 28lb vector at a 45-degree angle northwest and a 15lb vector directed north. The law of cosines is referenced as a method for solving the problem. A user has shared their calculations in a PDF file and is seeking verification of their resultant vector. Another participant confirms that the calculations appear correct but suggests rounding the final answer to an appropriate number of significant figures. The conversation emphasizes accuracy in vector addition and proper reporting of results.

May 5, 2010

drkidd22

Homework Statement

add vector of 28lb at 45 degree north-west and vector 15lb north

Homework Equations

law of cosines

The Attempt at a Solution

attached .pfd file

Please can someone verify that my Resultant vector is correct

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May 5, 2010

Doc Al

Mentor

Looks good to me. (I would round off your final answer to a reasonable number of significant figures.)

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