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A roller coaster of mass 1000.0 kg passes point A with a speed of 1.80 m/s?

point a= 30m
point b= 0m
point c= 25m
point d= 12m
1. What is the total mechanical energy of the roller coaster at point A?
2. What is the speed of the roller coaster at point B?
3. What is the potential energy and the kinetic energy of the roller coaster at point C?
4. Derive an expression for the speed of the cart using the variables E, m, g, and h.
5. Determine the speed of the roller coaster at D.

Question ID
535971

Created
April 24, 2011 10:29pm UTC

Rating
0

URL
https://questions.llc/questions/535971

Answers
2

Views
3032

2 answers

  1. reference potential energy to ground
    U = m g h
    Ke = (1/2) m v^2

    1
    E = U + Ke = 1000*9.8*30 + 500 (1.8)^2

    2
    E = 0 + Ke
    so (1/2) m (Vat B)^2 = E from 1 above

    3
    same old E from part 1
    E = 1000*9.8*25 + Ke at C

    4
    (1/2) m v^2 = E - m g h

    5
    (1/2) m v^2 = E - m g h

    Answer ID
    536000

    Created
    April 24, 2011 10:46pm UTC

    Rating
    3

    URL

  2. is damon answer right??

    Answer ID
    2094101

    Created
    November 23, 2020 9:12am UTC

    Rating
    2

    URL

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