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July 30, 2014

July 30, 2014

Posted by **sophie** on Friday, April 3, 2009 at 7:30pm.

A. 5.8 J

B. 2.49 10^2 J

C. 3.25 10^2 J

D. 8.24 10^3 J

I know the formula is W=Fdcos0 but I keep trying and can't get the right answer

- physics -
**drwls**, Saturday, April 4, 2009 at 12:47amYou have to add the F d cos theta values of both Carol and Bruno.

14.5 m * (11.4 cos 40 + 11.0 cos 40)Newtons

= 249 J

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