anonymous
  • anonymous
A mechanism on Earth used to shoot down geosynchronous satellites that house laser-based weapons is finally perfected and propels golf balls at 0.94c. a) How far will a detector riding with the golf ball initially measure the distance to the satellite? [Geosynchronous satellites are placed 3.58x104 km above the surface of the Earth.] b) How much time will it take the golf ball to make the journey to the satellite in the Earth’s frame? How much time will it take in the golf ball’s frame?
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
@Jemurray3 do I use length contraction on this? if so , how?
anonymous
  • anonymous
Yes, for the first part. As straightforwardly as you possibly could... \[ L = L_0 \sqrt{1-v^2/c^2} \]
anonymous
  • anonymous
so L0 would be 3.58x10^4 ?

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anonymous
  • anonymous
Yes, the proper distance is measured in the earth frame because the geosynchronous satellites are at rest relative to the earth.
anonymous
  • anonymous
for b) do I do just normal calcuation using t= l/v then lorentz transform that t?
anonymous
  • anonymous
@Jemurray3
anonymous
  • anonymous
Yes. Alternatively, you could divide the contracted distance by the velocity.
anonymous
  • anonymous
oh I see, that works too Thank you for your help

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