A dwarf planet D possesses 2 % of Earth’s mass and 20 % of Earth’s radius.
PHYSICS · Multi-part · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
A dwarf planet D possesses 2 % of Earth’s mass and 20 % of Earth’s radius.
(i) Calculate the acceleration due to gravity on the surface of planet D as a fraction of the acceleration due to gravity on Earth.
(ii) A robotic vehicle has a mass of 200 kg. Find its weight on planet D.
(iii) Determine how many identical vehicles must be placed together on planet D so that their combined weight equals the weight of a single vehicle on Earth.