Homework Help Forum: Physics

Posted by Jen on Sunday, October 4, 2009 at 8:58pm.

You are explaining why astronauts feel weightless while orbiting in the space shuttle. Your friends respond that they thought gravity was just a lot weaker up there. Convince them and yourself that it isn't so by calculating the acceleration of gravity 562 km above the Earth's surface in terms of g.

• Physics - bobpursley, Sunday, October 4, 2009 at 9:06pm

  g(562km)= 9.8m/s^2 * (re/re+562km)^2 put re in km..

  
  

• Physics - Jen , Sunday, October 4, 2009 at 9:55pm

  I know everything else but what is RE?

  
  

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