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9th Class Science Time and Motion Question Bank Motion Formative Subjective Problems

  • question_answer
    A rabbit moves a distance of 8 cm from P to Q and then moves a distance of 6 cm at right angles to PQ. What is the magnitude of its displacement?

    Answer:

     
    Displacement = Shortest distance between P and R = PR Applying Pythagoras theorem, \[PR=\sqrt{{{8}^{2}}+{{6}^{2}}}\] \[=\sqrt{64+36}=\sqrt{100}=10cm\] Therefore, the displacement of the rabbit is 10 cm.


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