Can you add and subtract constant accelerations?
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1$\begingroup$ I think that the proper title must be : Do accelerations add the same way velocities add in non-relativistic mechanics? so to extend later to what happens in relativistic mechanics. $\endgroup$– VoulkosCommented Aug 17, 2021 at 10:06
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$\begingroup$ The title and body are asking different questions. $\endgroup$– Vincent ThackerCommented Aug 17, 2021 at 12:37
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$\begingroup$ This question needs to be edited. title and body are not the same $\endgroup$– silverrahulCommented Aug 18, 2021 at 12:14
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$\begingroup$ @silverrahul I edited it. $\endgroup$– user310302Commented Aug 19, 2021 at 1:39
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$\begingroup$ @barrett-barry , this is too short. You have to provide some details. $\endgroup$– ACBCommented Aug 19, 2021 at 3:22
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1 Answer
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Of course you can add velocities and accelerations as well. This is a useful concept in relative motion.
Relative velocity $$\vec v_{AB}=\vec v_{AC}+\vec v_{CB}$$
Relative acceleration $$\vec a_{AB}=\vec a_{AC}+\vec a_{CB}$$
But you should always have a clear idea about why you add these velocities or accelerations.[1]
