question_answer 34)

  If the displacement of an object is proportional to square of time, then the object moves with (a) uniform velocity                                                        (b) uniform acceleration               (c) increasing acceleration                                            (d) decreasing acceleration

Answer:

  (b) From second equation of motion,  If object starts from rest i.e., initial velocity (u) = 0 and aconite an acceleration (a) in time (t) Then,      if a = constant So, the object moves with constant or uniform acceleration.