l*********m
发帖数: 16971 | | r*m
发帖数: 16380 | | p******e
发帖数: 17163 | 3 my high school teacher told me that velocity of a free fall object is:
v(t)=g*t
where g is gravity, and t being time
so as time goes, velocity should increase | g*******h
发帖数: 1327 | | l*********m
发帖数: 16971 | |
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