✔ 0.5; When the speed of the bottle is 2 m/s, the KE is kg m2/s2.: 0.5; When the speed of the bottle is 3 m/s, the KE is kg m2/s2.: 1; When the speed of the bottle is 4 m/s, the KE is kg m2/s2.: 2; When the speed of the bottle is 5 m/s, the KE is kg m2/s2.: 3; When the speed of the bottle is 6 m/s, the KE is kg m2/s2.: 5