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Interpreting Results?

  • Thread starter XTEND
  • Start date
  • #1
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Interpreting Results???

Homework Statement



A student recently submitted a homework solution in which he or she had calculated
an angular velocity w = 0.0002 rad/s (for a satellite going around the Earth.) The
student then found the period by using T = rad /w = 31415.92 seconds. Describe why
both answers are unacceptable. This is not about any formulae — it is about the
results that are given. (Your discussion should contain 4 or 5 sentences at the least.)

Homework Equations



N/A

The Attempt at a Solution



I think scentific notation should be applied, but other than that??? Not sure what they want.

TIA
 

Answers and Replies

  • #2
rl.bhat
Homework Helper
4,433
5


When a satellite going around the Earth, the centripetal force is provided by the gravitational froce of Earth on the satellite.
Hence m*w^2*R = GMm/R^2. Where R is the radius of the earth and M is the mass of the earth. Where close to the earth GM = gR^2 where g s the acceleration due to gravity. Using these values calculate w. and verify the result with the given value.
 

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