hey, i am really stuck on this problem and i was wondering if anyone could help me...(adsbygoogle = window.adsbygoogle || []).push({});

The planet Mercury orbits the Sun at a mean distance of 5.80X10^7 km.

a) calculate the strength of the Sun's gravity field (g) at Mercury's mean distance.

b) Calculate Mercury's orbital speed in m/s and in km/h.

Any assistance on the problem would be greatly appreciated!!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Gravity/Circular Motion

**Physics Forums | Science Articles, Homework Help, Discussion**