•Question 4 (1 point) What is the circular
velocity of Mercury?
You will need values from Appendix A of the textbook. You might also find the example in By the Numbers 4-1.
a. About 5 km/s.
•b. About 25 km/s.
•c. About 50 km/s.
•d. About 75 km/s.
•e.About 100 km/s.
•
•Start From Vc = (GM/R)0.5
•G = 6.67x10-11 m3/kg s2, M=2x1030 kg, R=5.8x107 km