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Question

A dog walks 140 m due east and then turns west and runs 65 m. He then turns north and trots 40 m. After completing his journey. Then he hears his master's call, he runs directly home. Calculate total distance covered and total displacement of the dog before his master called.

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Solution

OA=140mAB=65mBC=40mOB=14065=75mOC=402+752=85m
Distance cover by dog=OA+AB+BC+OC=140+65040+85=330

Displacementbefore mastered called is
OC=85m


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