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The Interior of Ceres
August 20, 2018DawnTom
One of the interesting things about Ceres is it is actually less dense (2161 Kg/cubic meter) than the Jupiter moon Europa (3013 Kg/cubic meter). It does begin to make more sense after learning there may be some sort of brine making up the interior.
Knowing the density we should be able to figure out how fast something falls. Let’s try (hopefully I get the maths right):
We are clumsy and fall so our initial velocity is zero. So the formula would be:
distance = 0.5*g*time^2 (that is time squared) and velocity = g*time.
We have a 30 meter platform. if we fell off here on Earth gravity (9.8 m/sec2) we would hit the ground in about 1.4 seconds at a velocity of 14 m/sec – a very hard hit indeed.
More:
http://nineplanets.org/news/the-interior-of-ceres/