The magnetitude of pairs of displacement...

The magnetitude of pairs of displacement vectors are given. Which pairs of displacement vector cannot be added to give a resultant vector of magnitude `13` cm?

A

4 cm, 16 cm

B

20 cm, 7 cm

C

1 cm, 15 cm

D

6 cm, 8 cm

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The correct Answer is:

3

Resultant of two vectors `vecA and vecB` must satisfy `A~B le R le A+B`

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