use the gravitation formula to find the attractive force
... this is also the centripetal force ... m v^2 / r
the work done on the satellite is its kinetic energy ... 1/2 m v^2
A satellite moves in a circular orbit of radius 35.793 km. The Earth's radius and mass are Re = 6.37e6 m, and Me = 5.97e24 kg.
For the satellite, calculate the work done to put the satellite in orbit (mass of satellite is 1000 kg).
2 answers
Work done= change in PE + change in KE.
change in PE= GMm (1/re^2 -1/(re+1000)^2)
change in PE= GMm (1/re^2 -1/(re+1000)^2)
52 answers