VectorHard

Question

An aeroplane moves 400m towards the north, 300m towards west and then 1200 m vertically upwards west and them 1200m vertically upwards. then its displacement from the initial position is

Options

A.1600m
B.1800m
C.1500m
D.1300m

Solution

         
Here CD is perpendicular to the plant of papeer. Required distance = BD
BD2 = CB2 + CD2 = 5002 + 12002
BD = = 1300m

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