Traditional Culture Encyclopedia - Photography major - (20 14? Stroboscopic photography in Minhang district is a common experimental means to study variable speed movement. In a darkroom, the shutter of the camera is always open and strobes.

(20 14? Stroboscopic photography in Minhang district is a common experimental means to study variable speed movement. In a darkroom, the shutter of the camera is always open and strobes.

(1) uniformly accelerates linear motion, and the displacement difference in adjacent equal time is constant, so it is enough to prove that the displacement difference in adjacent time intervals is constant;

According to the inference of uniform linear motion, △h=aT2:

a=h3? h24T2=0.07 13? 0.03 18? (0.03 18? 0.008)0.042=9.8 1m/s2,

So the answer is: (1) It is proved that the displacement difference between adjacent time intervals is constant;

(2)9.8 1