Question

Practic
1. A body is said to be in motion, when it
changes its ......
(a) position with respect to time
(b) time
(c) structure with respect to time
(d) Both (a) and (b)
A house situated at a place is said to be in​

Answer 1

Hey buddy

a) is the correct option

Well it is the best to say when a body changes position wrt time and a particular object taken as reference point

A house situated at a point is said to be in motion wrt earth is revolving around the sun .

But if u change reference point then it'll be said to at rest depending on reference point .

Hope it helps you