CBSE Class 11-science Answered

It is very difficult to answer this question as can be seen from the excerpt that I found on the internet and have pasted below. It says that maybe gravity itself is a pseudo force...

Perhaps gravity is only a pseudo force?

Nobel price laureate Richard Feynman said that gravity may  only be a pseudo force...  Here is a direct quote from his book “Lectures on Physics", chapter 12-11:

“One very important feature of pseudo forces is that they are always proportional to the masses; the same is true of gravity.  The possibility exists, therefore, that gravity itself is a pseudo force.  Is it not possible that perhaps gravitation is due simply to the fact that we do not have the right coordinate system?”  (Richard Feynman)