What is the satellite’s speed before it’s launched (in m/s)? (Hopefully, it’s moving along with the surface of the Earth as the Earth rotates.) b. What is the satellite’s speed in its orbit (in m/s)? (Remember there is only one speed a satellite can have in order to maintain a stable circular orbit with a given radius.) c. Assuming a circular orbit, what is the orbital period of this satellite? (In other words, how long (in hours) does it take for the satellite to complete one orbit?) d. What is the minimum energy (work) necessary to place the satellite in orbit, assuming no air friction?
A satellite of mass 200 kg is launched from a site on Earth’s equator into an orbit 200 km above the surface of Earth.
a. What is the satellite’s speed before it’s launched (in m/s)? (Hopefully, it’s moving along with the surface of the Earth as the Earth rotates.)
b. What is the satellite’s speed in its orbit (in m/s)? (Remember there is only one
speed a satellite can have in order to maintain a stable circular orbit with a
given radius.)
c. Assuming a circular orbit, what is the orbital period of this satellite? (In other words, how long (in hours) does it take for the satellite to complete one orbit?)
d. What is the minimum energy (work) necessary to place the satellite in orbit,
assuming no air friction? (Remember, work is the amount of energy added to
the system, and the total energy of the system is a combination of kinetic and
gravitational potential energies.)
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