One of the Example in my Textbook is
A body travels a distance of 2 m in 2 seconds and 2.2 m in next 4 seconds. What will be the velocity of the body at the end of 7th second from the start.
In Solution they let 'a' be the uniform velocity and used equations of motion (which we use when there is an uniform acceleration motion) and solved it.
My Doubt is How did they let 'a' be the uniform acceleration.
I would have taken different acceleration for 1st 2 seconds , next 4 seconds and the last one second.
Either the question is incomplete (i.e., It should provide it is an Uniform Accleration Motion) or I am Wrong Somewhere.