A stone is in free fall from the edge of the balcony of the building. Divide the total time of its movement in the air into three equal sections, if its displacement in the first period is 1.2m, then its displacement in the third period is_______
A. 1.2m
B. 3.6m
C. 6.0m
D. 10.8m
Answer:C
A stone is in free fall from the edge of the balcony of the building. Divide the total time of its movement in the air into three equal sections, if its displacement in the first period is 1.2m, then its displacement in the third period is_______
A. 1.2m B. 3.6m C. 6.0m D. 10.8m