Question

Why it is beneficial to use satellite launch vehicles made of more than on stage???


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Answer 1

$\large\mathbb{\underline\purple{ANSWER}}$

The major portion of weight in satellite launch vehicles is contributed by fuel. ... To overcome this problem of launch vehicles carrying heavy load during its entire journey, it is provided with more than one stage. Because to this, the weight of the vehicles can be reduced step by step, after its launching.

Answer 2

Answer:

The major portion of weight in satellite launch vehicles is contributed by fuel. Thus, vehicles have to carry a large weight of fuel during their course of journey. To overcome this problem of launch vehicles carrying heavy load during its entire journey, it is provided with more than one stage. Because to this, the weight of the vehicles can be reduced step by step, after its launching. For example, consider a launch vehicles having two stages. For launching the vehicles, the fuel and engine in the first stage are used. This imparts a specific velocity to the vehicle and takes it to a certain height. Once the fuel in this first stage is exhausted, the empty fuel tank and the engine are detached from the main body of the vehicles and fall either into a sea or on an unpopulated land. As the fuel in this first stage is exhausted, the fuel in the second stage is ignited. However, the vehicles now contains only one (i.e. the second) stage. The vehicles can move with higher speed as the weight has reduced.

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