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anonymous

  • one year ago

Newton's Law of motion problem the question is in the picture.

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    I already know a,b,c,e

  3. anonymous
    • one year ago
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    my problem is D and F broke the friction. So the acceleration of them is not 0 anymore so how do I get the acceleration of D and F

  4. anonymous
    • one year ago
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    A,B,C,E force is not enough to broke the static friction so the acceleration is 0 right? And D and F is enough to broke the friction so I have to get the acceleartion of it (which I don't know how to)

  5. dan815
    • one year ago
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    find the resultant force first

  6. dan815
    • one year ago
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    |dw:1441163777507:dw|

  7. dan815
    • one year ago
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    Force of friction is always opposite the motion

  8. dan815
    • one year ago
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    |dw:1441163866834:dw|

  9. dan815
    • one year ago
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    |dw:1441163904703:dw|

  10. dan815
    • one year ago
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    if mg = 21 then m=21/9.8

  11. dan815
    • one year ago
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    once u find Fnet u can find the total acceleration then

  12. anonymous
    • one year ago
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    hi hi hi hmmm so I got m

  13. anonymous
    • one year ago
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    wait going to read your text thanks

  14. anonymous
    • one year ago
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    so my Fnet is 39.6645 @dan815 ?? and my m is 2.1428? Fnet = ma -> 39.6645=2.1428a a = 18.51 m/s^2 ????

  15. anonymous
    • one year ago
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    hmm wait may fnet is 6.5

  16. anonymous
    • one year ago
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    my acceleartion in (j) is 3.03 and my acceleartion in (l) is -2.54 can you pls confirm @dan815

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