question_answer 38)

  Four cars A, B, C and D are moving on a levelled road. Their distance versus time graphs are shown in figure. Choose the correct statement.                        (a) Car A is faster than car D                                        (b) Car B is the slowest                                    (c) Car D is faster than car C                                     (d) Car C is the slowest

Answer:

  (b) The slope of distance-time graph represents the speed. From the graph, it is clear that the slope of distance-time graph for car B is less than all other cars. So, the slope is minimum for car 6. Hence, car 6 is the slowest.