An artificial satellite orbits planet Y at a distance of r=9.2×106 mr = 9.2 \times 10^6\text{ m}r=9.2×106 m from the centre of planet Y. The average orbital speed v v\,v of the satellite is 4200 m/s. What is the orbital period?
37 minutes
1 hour and 55 minutes
3 hours and 49 minutes
7 hours and 39 minutes
60 exam-style questions on CIE IGCSE Physics 6.1.2a Contents of the Solar System. Each one has a worked solution and a mark scheme showing where the marks go.