1.

A particle moves 3 m north, then 4 m east, and then 12 mvertically upwards, its displacement is(1) 12 m(2) 13 m(3) 19 m(4) 15 m​

Answer»

Answer:

13

North and EAST are on one plane so their displacement is 5m by PYTHAGORAS theorem.Now 12m upward is in another plane (imagine a TRIANGLE having BASE length 5m and 12 m high) .so displacement will be 13m by Pythagoras



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