Question
Download Solution PDFOn which of the following principles does a rocket in space work?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
- Momentum: The product of mass and velocity is called momentum or linear momentum.
- It is denoted by P and unit is kg⋅ m/s
- Momentum (P) = Mass (m) × velocity (V)
- Conservation of linear momentum: When there is no net external force on a system, then the total linear momentum of the system remains constant. This is called the conservation of linear momentum.
Explanation:
In the case of a rocket, we will take the rocket and its fuel as a system. There is no net force on this system, so the total momentum will be conserved.
- Thus the rockets work on the law of conservation of linear momentum is correct.
- The increased forward momentum of the rocket is equal but opposite in sign to the momentum of the ejected exhaust gases.
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