一道英文版的物理题,rockets are launched from an airplane in the forward direction of motion.the kinetic energy of the airplane will bea.unchangedb.increasedc.decreased

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一道英文版的物理题,
rockets are launched from an airplane in the forward direction of motion.the kinetic energy of the airplane will be
a.unchanged
b.increased
c.decreased

有一火箭从宇宙飞船发射,发射方向与飞船运动方向相同,则宇宙飞船的动能将会:
a.不变
b.增加
c.减少
只负责翻译^_^

c

b