A man has to go 50m due north' 40m due east and 20 m due south to reach a cafe from his home. (a) what distance he has to walk to reach the cafe ? (b) what is his displacement from his home to the cafe ?
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distance=50m+40m+20m=110m
displacement=h×h=a×a+b×b
h×h=30×30+40×40
h×h=900+1200
h×h=2100
h=70m
displacement=h×h=a×a+b×b
h×h=30×30+40×40
h×h=900+1200
h×h=2100
h=70m
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Answer:
displacement is 50 m
Explanation:
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