Question

A particle has displacement of 12m towards north then 6m vertically upward. The sum of these displacements
is
(a) 12
(b) 10.04 m
(c) 13.41m
(d) None of these
​

Answer 1

Answer: D) none of these

Explanation: 12m towards north is same as vertically upward

this means that total displacement should 6+12 = 18m

18 m is not in any option, hence none of these.

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Answer 2

Answer:

(d) none of these bcz 12m north and then 6m vertically upward.... this adds to 18m