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Chapter 8: Problem 24

Arrange the following steps in a sequence involved in the working of a rocket. (a) Gases are produced when the fuel in the combustion chamber is burnt. (b) The gases come out with great force which is action. (c) The hot gases are allowed to escape through a nozzle. (d) Due to this, the rocket moves with great speed in the other direction. (e) As a reaction, the gases exert an opposite force on rocket. (1) acbed (2) aecbd (3) beacd (4) cabed

Short Answer

Expert verified
Question: Arrange the events in the correct sequence to describe how a rocket works: (a) Fuel combustion in the chamber, (b) Gases exert force as they leave the rocket, (c) Gases escape through the nozzle, (d) Rocket moves with great speed, (e) Opposite force exerted on the rocket. Answer: (1) acbed

Step by step solution

01

Fuel combustion in the chamber

First, the rocket's fuel is ignited in the combustion chamber, which results in the generation of hot gases. This is represented by option (a).
02

Gases escape through the nozzle

The next step in the sequence is the escape of the hot gases through a nozzle, as mentioned in option (c). This nozzle allows the gases to exit the rocket at a very high speed.
03

Action: Gases exert force as they leave the rocket

As the gases leave the rocket with great force, they create an action force. This is described in option (b).
04

Reaction: Opposite force exerted on the rocket

According to Newton's Third Law of Motion, the escaping gases exert an equal and opposite reaction force on the rocket, pushing it in the opposite direction. This is mentioned in option (e).
05

Rocket moves with great speed

Lastly, due to the reaction force, the rocket moves with a great speed in the opposite direction of the escaping gases. This is illustrated in option (d). Combining these steps into the correct sequence, we get: (a) → (c) → (b) → (e) → (d). Comparing this to the given options, we find that the correct sequence of events is: (1) acbed

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