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13. Which of the following distance-time graphs shows a truck moving with a speed which is not constant?

                        

                         
                                                               

Answers (1)

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The slope of the distance-time graph represents the speed of an object.

  1. In d-t graphs, the constant speed is shown by a straight line.
  2. A straight line parallels the time axis, it indicates that the body is at rest position.
  3. A curved line on d-t graphs means the speed is not constant.
  4. The slopes are constant and the graph.

Hence the correct option is (iii).

Posted by

manish painkra

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