The asteroid Ceres has mass of 7 times 10 to the power of 20 kg and radius of 550000 m.(adsbygoogle = window.adsbygoogle || []).push({});

a)What is the gravitational field strength at the surface of Ceres? DONE 0.15 N kg to the power of -1

b)What is the gravitational potential at the surface of Ceres?DONE 85 kilo J kg to the power of -1

c)What is the minimum escape velocity from the surface?DONE 410 m s to the power of -1

d)What is the minimum energy required to escape from Ceres? i do not know this part. Could I use a formulae of Kinetik energy? Please help me.

**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!

# Homework Help: Minimal Energy

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