Question

if the particle is moving in a straight line then particle is said to be in

Answer 1

Answer:

if it is travelling equal distance in equal intervals in straight line it is called uniform motion

Answer 2

Answer:

The displacement of a particle moving in a straight line is the change in its position. If the particle moves from the position x(t1) to the position x(t2), then its displacement is x(t2)−x(t1) over the time interval [t1,t2]. In particular, the position of a particle is its displacement from the origin