physics

alculate the final speed of a 1500 kg roller coaster if it has an initial speed of 16 m/s but reduces its elevation by 8.6 m by coasting down a frictionless incline.

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asked by grey
  1. final KE=Intial KE+initial PE
    1/2 m v^2= 1/2 m 16^2 + mg 8.6

    solve for v

  2. what mass do i use?

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    posted by grey
  3. doesn matter, it divides out. If you want, use 1500kg

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