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Q & A: Newton's 3rd law and rockets

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Most recent answer: 01/27/2016
Q:
if a space rocket works on newton 3rd law (action-reaction. implementation of this law needs 2 bodies for example body A & body B..in case of rocket what is body A & what is body B?????
- RAJA BISHT (age 28)
NEW DELHI
A:

Hello Raja,

A rocket at rest consists of the rocket frame and the rocket's fuel load. They both have mass. The fuel burns producing high velocity gasses which are ejected toward the rear.  These gasses have mass too; body B in your nomenclature.  Body A is the now empty frame of the rocket.

LeeH


(published on 01/27/2016)

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