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anonymous

  • 5 years ago

A force of 60 pounds is exerted along a rope attached to a crate at an angle of 30o above the horizontal. The crate is moved 29 feet. How much work has been accomplished? Round answer to one decimal place.

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  1. anonymous
    • 5 years ago
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    60 lbs = 266.8 N 28 ft = 8.84 m the horizontal force would be 266.8cos(30) so W = F * d W = 266.8cos(30) * 8.84 W = 363.80 J

  2. anonymous
    • 5 years ago
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    Ok well I did that originally but none of my answer choices match that...

  3. anonymous
    • 5 years ago
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    A. 1,740.0 foot-pounds B. 2,009.2 foot-pounds C. 1,623.4 foot-pounds D. 1,816.3 foot-pounds E. 1,506.9 foot-pounds

  4. anonymous
    • 5 years ago
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    oh..they dont' want in SI units... that's silly.. doing the exact same thing as i did up there but don't convert, notice they're using the same units given in the question, so i guess it's easier. but do the exact same thing and you'll get E. 1506.88

  5. anonymous
    • 5 years ago
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    Oh ok well man I was making that harder than it need to be lol sorry Thanks!

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