Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

hba

  • 2 years ago

A particle moves along x-axis.It starts from rest at origin O and its acceleration after t sec is given by a=3-t . Calculate the displacment from O when it is at rest.

  • This Question is Closed
  1. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @saifoo.khan

  2. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Can you do it ?

  3. jennychan12
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    find antiderivative twice for a = 3-t

  4. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    integrate. a=3-t v = 3t - t^2/2 + C Now set it equal to zero to get time. Then integrate again, find the disp.

  5. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Therefore, the answer is 18. Something which appeared in the (NUST) test.

  6. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @saifoo.khan

  7. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    REALLY? O_O

  8. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Yeah

  9. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    An O'levels student who have Add math can solve this too! D: D: D:

  10. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Hmm,good :)

  11. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    What about hyperbolic functions ? You've done that ?

  12. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    give me the problem, then i can tlel.

  13. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\int\limits_{}^{}e^x[\sinh^{-1} x+\frac{ 1 }{ \sqrt{1+x^2} }]dx=\]

  14. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @saifoo.khan Like this.

  15. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    INtegration by parts?

  16. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    idk how to deal with sinh^-1

  17. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    So you don't know hyperbolic functions ?

  18. experimentX
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    use e^x(f(x) + f'(x)) rule differentiation of arcsinh(x) = 1/sqrt(...)

  19. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    I guess no, then. :S

  20. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    hmm No need to worry about that it's easy,you can do that later. What about finding the area from a diag ?

  21. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    We have to learn that parallelogram thing. But i can find the area/vol of a curve and stuff

  22. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Lets see. find the Area A+B |dw:1356722864399:dw|

  23. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    NOOO! Give me more difficult one.

  24. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Ok.

  25. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    find the area A |dw:1356723204131:dw|

  26. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1356723438919:dw|

  27. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Let me grab a pen and paper.

  28. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Hmm :)

  29. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Is calc allowed?

  30. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    No not allowed+You changed the question lol :P

  31. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Sinx graph starts from zero. lol.

  32. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Oh okay then :/

  33. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Haha.

  34. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Now solve it .

  35. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    isk what's sin(pi/4). i can only solve with the help of calc.

  36. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    180/4

  37. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    area under cos is 1/sqrt2

  38. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Sin45=0.707

  39. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    0.707-0.293 ?

  40. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @saifoo.khan Solve it and let me know :)

  41. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    0.414

  42. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Don't do it in decimals.

  43. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    dang.

  44. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    1/sqrt2 - (-1+sqrt2)/sqrt2

  45. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Making: (2-sqrt2)/sqrt2

  46. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Making: \[\frac{2\sqrt2-2}{2}\]

  47. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    sqrt2-1 final answer?

  48. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\sqrt{2}-1 \ sq.unit\] Yeah right :D

  49. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Wheo! B)

  50. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    One more. Find the area enclosed by x=y^2 and y=x-2

  51. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    umm okay. solving.

  52. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    k.

  53. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    1,4

  54. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    area under line = 2 squnits

  55. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    trying to figure out about x=y^2

  56. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    1/2 final answer?

  57. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Let me give you options lol A)9/2 sq.units B)9/4 // C)9/7 // D)7/9 // E)4/9 //

  58. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Can't fig out.

  59. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I also couldn't figure this out lol :P

  60. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @hartnn Can you solve it ?

  61. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Find the area enclosed by x=y^2 and y=x-2

  62. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    this is double integration problem.. right ?

  63. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i don't think so.

  64. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    plot both curves..

  65. saifoo.khan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1356725537575:dw|

  66. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @hartnn Yes ?

  67. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    sorry, got disconnected.

  68. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1356727367179:dw| \(\int \limits_{y_1}^{y_2}f_1(x)-f_2(x)=\int \limits_{y_1}^{y_2}(y+2)-y^2dy|dw:1356727499321:dw|\)

  69. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \(\int \limits_{y_1}^{y_2}f_1(x)-f_2(x)=\int \limits_{y_1}^{y_2}(y+2)-y^2dy\)

  70. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    find y2 and solve the integral

  71. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    sorry, y1 and y2 limits should be |dw:1356727654740:dw|

  72. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.