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  1. danial 234

    Physics: Post your doubts here!

    if you want to use 8 , then you would have to use 0.04 ... simply, you just find the gradient but before that convert the units
  2. danial 234

    Physics: Post your doubts here!

    k= gradient (convert the mm into metre) k=12/0.06 k=200 right??
  3. danial 234

    Physics: Post your doubts here!

    i dont know about how it is derived :/
  4. danial 234

    Physics: Post your doubts here!

    900*0.2=F*1.2 solve to find F
  5. danial 234

    Physics: Post your doubts here!

    np :)
  6. danial 234

    Physics: Post your doubts here!

    Force = density * area * velocity^2 =1.2*12*(33^2)
  7. danial 234

    Physics: Post your doubts here!

    one question!!!!! how do you type so much? :D :D #tiring :P
  8. danial 234

    Physics: Post your doubts here!

    the question asked abt the direction of forces acting on stone.. stone is in vacuum so there is no air resistance .. so no force will be acting on it in horizontal direction only force acting on the stone is gravity which is vertical.. so the ans will be vertical (XV)
  9. danial 234

    Physics: Post your doubts here!

    the eq is this s=ut+0.5at^2 but as the initial vertical velocity (u) was zero so the eq became 0.5at^2 no problem :)
  10. danial 234

    Physics: Post your doubts here!

    13) if we choose A k.e wont be conserved initial k.e = 1/2mv^2 final= 1/2m(0.5v^2) + 1/2m(0.5v^2) = 1/4mv^2 14) the only force acting is gravity.. no air resistance because it is in vacuum .. so force will be in XV only
  11. danial 234

    Physics: Post your doubts here!

    4) using metre rule with mm divisions , using light gates, using balance which measures to nearest gram .. will increase the accuracy of reading... hence less uncertainty 5) horizontal distance = vt vertical = 1/2gt^2 (using 2nd eq of motion) horizontal/vertical= 2v/gt 10) acceleration and...
  12. danial 234

    Thanks :D

    Thanks :D
  13. danial 234

    acha :/ bss kal last hy *phew*

    acha :/ bss kal last hy *phew*
  14. danial 234

    tmara ?

    tmara ?
  15. danial 234

    acha hua... :)

    acha hua... :)
  16. danial 234

    yeah!! i m fine too :D tomorrow.. last exam :D

    yeah!! i m fine too :D tomorrow.. last exam :D
  17. danial 234

    hi Amy :D hows you?

    hi Amy :D hows you?
  18. danial 234

    i guess. its kindaa late :D

    i guess. its kindaa late :D
  19. danial 234

    :)

    :)
  20. danial 234

    bss dimagh kharb ho gya tha

    bss dimagh kharb ho gya tha
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