The critical speed of a satellite of mass 500 kg is 20 m/s. What is the critical speed of a satellite of mass 1000 kg moving in the same orbit ?
The critical speed of a satellite of mass 500 kg is 20 m/s. What is the critical speed of a satellite of mass 1000 kg moving in the same orbit ?
A. 0 m/s
B. 20 km/hour
C. 72 m/s
D. 72 km/hour
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Correct Answer - D
`V_(c )` is independent of the mass of the satellite.
`therefore V_(c )=20 m//s = 20xx3600` m/hour
= 72000 m/h = 72 km/hour
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