Question 1176850
5.5=a10^k
a=5.5/10^k
22=a20^k
a=22/20^k
set those two equal
(5.5/10^k)=(22/20^k)
1/10^k=4/20^k
(2^k)=4
k=2
a=0.055
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check in third where 49.5=0.055^30^2,  which is true, as is the fourth.
a=0.055
k=2
Model is distance = 0.055*speed^2
d=0.55*s^2