Science

True / False:
If a 40 kg person is accelerating at 10 m/s^2,then the magnitude of the force acting on him or her is 400 N.

1.How much force is needed to make a 60 kg object accelerate at a rate or 2.0 m/s ^2?

2.What is the acceleration of a 30 kg objedct when 180 n of force is aplied to it?

3.Which of the following equation shows how you would solve for mass if you know the force acting on an object and the accleration of an object?
a~m=f/a
b~m=fa
C~m=a/f
d~m=f-a

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  3. 👁 10,793
  1. You can apply Newton's Second Law, which is essentially Force = Mass x Acceleration.

    For the first question, have a mass of 40kg and an acceleration of 10m/s^2, which means that the Force will be 400N.

    1. Calculate force by multiplying mass by acceleration, so 60kg x 2.0m/s^2 which will result in a force of 120N.

    2. You can rearrange the variables in the equation F=m*a as a=F/m. Take the force applied and divide it by the mass, so 180N / 30kg which is 6m/s^2.

    3. If you know the force and acceleration of the object, you can rearrange the equation F=ma to m=F/a.

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    2. 👎 1
  2. Thanks:)They were all right!!:)your so smart!!:)

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    2. 👎 1
  3. JUST TOOK THE QUIZ GOT 100%
    1.) True
    2.) C
    3.) A
    4.) A

    1. 👍 302
    2. 👎 2
  4. thax emma your the best

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    2. 👎 0
  5. Thanks so much Emma your a life saver!!!

    1. 👍 11
    2. 👎 0
  6. Emma answers are correct just look the test 100% thanks Emma you are a life saver!

    1. 👍 13
    2. 👎 0
  7. Good for year 2017

    1. 👍 9
    2. 👎 0
  8. True
    C
    A
    A
    Are the correct answers

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    2. 👎 0
  9. Use Emma's answers she's correct i'm telling you she's a life saver.

    1. 👍 8
    2. 👎 1
  10. thx

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    2. 👎 0
  11. Thanks Emma uwu

    1. 👍 5
    2. 👎 0
  12. UwU > OwO

    1. 👍 3
    2. 👎 1
  13. The answers are correct for 2018

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    2. 👎 0
  14. thanks everyone

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    2. 👎 0
  15. 1. True
    2. C
    3. A
    4. A

    100

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    2. 👎 1
  16. false
    b
    c
    b

    dont listen to these fools i got your back

    1. 👍 0
    2. 👎 34
  17. All the people that said the answers were
    True
    C
    A
    A
    are 100% correct, I'm not lying I just got a 100% using True C A A

    1. 👍 9
    2. 👎 2
  18. "the man" is totally 0% wrong! Use True C A A! It'll give you 100%

    1. 👍 11
    2. 👎 0
  19. Don't listen to the man some people just want to watch the world burn

    1. 👍 6
    2. 👎 0
  20. the answers for the connexus acadamy students for 8th grade science unit 4 lesson seven semester B are
    B
    C
    A
    A
    100 percent if you are a connexus student. ( as of 2018 )

    1. 👍 0
    2. 👎 13
  21. I am sorry "human". Your answers aren't correct

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  22. wait up that is my name spelled exactly. makayla yeah.

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  23. Thank you so much that helped me so much

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  24. omg i got a 100% tanks sooo much!!!!!

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  25. thx emma

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    2. 👎 0
  26. Thank u

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    2. 👎 0
  27. 1 . T r u e
    2 . C
    3 . A
    4 . A
    A n y o n e
    w h o
    s a i d
    t h e
    s a m e
    a r e
    c o r r e c t .

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    2. 👎 0
  28. JUST TOOK THE QUIZ GOT 100%
    1.) True
    2.) C
    3.) A
    4.) A

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    2. 👎 0
  29. connexus 100%
    true
    c
    a
    a

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    2. 👎 0
  30. Btw, you guys should learn how to answer this stuff on your own. The next question I'm answering I'll say the answer wrong. Start studying, it will pay off, trust me

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  31. Emma, mind your own business.
    Guys, it's Tristan is right.
    Also, remember for the future...it's just Force = to mass times acceleration. You can do it. xoxo

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  32. 1)True
    2)C-120N
    3)A-6.0 m/s’2
    4)A-m=f/a

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    2. 👎 0
  33. thanks emma!

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    2. 👎 0
  34. 1true
    2 b
    3 d
    4 d
    kams a scamer

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    2. 👎 6
  35. yee

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  36. The answers are still
    True
    C
    A
    A
    As of Jan 15th 2020

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    2. 👎 0
  37. still works for 2020

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    2. 👎 0
  38. 4/4(100%)😸
    1. A: true
    2. C: 120N
    3. A: 6.0 m/s^2
    4. A: m=f/a

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  39. The student named “Emma” is correct! Also congratulations 🎉🎊🎈🍾 on getting more then 100 likes on your answer!! ✅ ✅ ✅

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  40. thats not real Emma btw xd

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  41. If you just want the answer, then look at the 10 answer sheets posted already. However if you want to know why then here:
    If a 100 kg person traveled at 5m/s^2 or meters per second squared there would be 500 newtons acting on that person, because F=M*A or Force equals mass times acceleration. Acceleration would be the speed, so the 5m/s^2 and mass would be 100 kg. This makes the equation F=100*5, making the answer 500=100*5.

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  42. thax emma

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  43. Just took it.

    1) True
    2) C
    3) A
    4) A

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  44. I am in connexus, I can confirm the answers are
    True
    C
    A
    A
    I just took the quick check and got 100. Don't listen to anyone else that tells you these arent the answers. THEY ARE THE ANSWERS AS OF APRIL 2020

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  45. Thank you Emma ^^

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    2. 👎 0
  46. Thanks Emma

    Good for Oct 2020

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  47. is no one gonna question how emma just replied to herself and said to listen to her on her own account

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