Traditional Culture Encyclopedia - Photography major - Xiao Jiu photography
Xiao Jiu photography
The actual length of the 000cm window frame in the photo is 4 cm. So the actual length of the stone movement trajectory is:
△x=0.6×0004=40cm=0.4m
So the speed of the stone is approximately = △×△ t = 0.40.0m = m0m/s.
According to the person in free fall =gt, there is
T = person g = m000s = ms
So choose 0.
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