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How is efficency of a raaamp is affected by maass/sloope?

  1. Jun 7, 2009 #1
    how is efficency of a raaamp is affected by maass/sloope???

    suppose you had a cart rolllling down a raamp
    keeping friction constant, how would the efffficiency change if I:

    change the maass?

    change the heeight?

    HOW would I find the work of friction?
    by effficiency I mean Ennergy IN/Ennergy OUT x 100%
    this is asssuming a connstant disstance of 1 M for the ramp!

    if anyone can help i would appreciate it!
    cart is starting at rest

    This means that efficciency:
    = mgh/0.5mv^2 x100
    =2mgh/mv^2 x100
    =2gh/v^2 x100
    Theoretically, this means that maaass is inddependent of ennergy.

    where do i go from here
     
  2. jcsd
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