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Fav十万个为什么
为什么火箭能够起飞？
火箭能够起飞，主要是基于其发动机的工作原理、燃料燃烧产生的推力以及反作用力的作用。具体原因如下：
1、燃料燃烧产生推力：火箭携带的燃料在发动机内燃烧，生成高温高压的气体。这些气体通过尾喷管高速喷出，形成强大的推力。
2、反作用力原理：根据牛顿第三定律，每一个作用力都有一个大小相等、方向相反的反作用力。当火箭发动机喷出气体时，气体对火箭产生反作用力，推动火箭向上飞行。
3、推力大于重力：火箭起飞的关键在于推力必须大于火箭自身的重力。当推力足够大时，火箭能够克服地球引力，开始升空。
总结：火箭能够起飞，主要因为燃料燃烧产生的高温气体通过尾喷管高速喷出，形成强大的推力，同时根据反作用力原理推动火箭向上。当推力大于火箭重力时，火箭便能成功升空。
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