a man walks 30m towards north and then 20m towards east and in last 30 root 2m towards south west , the displacement from origin is ???
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the correct answer is....
total displacement = A-B
in triangle ABC,
AC= 20m
BC= (30root2 - 30) m = 12.42m
total displacement,
AB^2 = AC^2 + CB^2
AB^2 = 400 + 154.25
AB = 23.542514.
total displacement = A-B
in triangle ABC,
AC= 20m
BC= (30root2 - 30) m = 12.42m
total displacement,
AB^2 = AC^2 + CB^2
AB^2 = 400 + 154.25
AB = 23.542514.
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