Question

6. What can you say about the nature of motion of a
body if its displacement-time graph is
(a) a straight line parallel to time axis ?
(b) a straight line inclined to the time axis with an
acute angle ?
(C) straight line inclined to the time axis with an obtuse angle

Answer 1

Answer:

for a straight line parallel to x axis is constant as velocity is same                                                                      for a straight line parallel inclined to x axis with an acute angle is non zero, negative, non uniform velocity of a body                                                                                                         straight line inclined to time axis with an obtuse angle  that means velocity is negative                                                                                                            

Explanation:

constant velocity (slope of graph) due to no change in time and distance is same                                                                                                                                          acute angle is 90 non zero and negative as time first increase and then decrease                                                                                                                                     obstuse is >90 <180 also show negative velocity