What creative thoughts did rømer have to explain his measurements

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

it is a negative acceleration

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.