Write a 5 page research paper on roller coaster design and physics. Start with the following links to gain information. Your paper should give a background on roller
coasters, relate the topics that we have covered in physics to roller coasters (ie.
Work, force, acceleration, potential energy, kinetic energy, velocity), and criteria
that you think make roller coasters fun and exciting. (See Research Paper Page for
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it would be c. predictability

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.