Question

plz solve this question...step by step​

Answer 1

Answer:

Here the first and third options are incorrect as they represent a curve.Curve in position time graph represents non uniform velocity that is acceleration. The acceleration can be positive, negative or constant(not clearly mentioned)

here it is not mentioned correctly but in the question we are provided with the condition constant acceleration. Thus, 1 and 3 options does not satisfy this.

the fourth option is incorrect because it represents an object which is at rest for T seconds. it does not satisfy the condition of accelerated motion as given in the question

the second option is the only correct because here the object moves for uniform acceleration for t seconds and then uniform retardation for next t seconds which satisfies the condition of question given.