Q.

Unit vector parallel to the resultant of vector 8i^ arid 8j^ will be

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a

(24i^+5j^)/13

b

(12i^+5j^)/13

c

(6i^+5j^)/13

d

None of these

answer is D.

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Detailed Solution

Resultant of two given vectors will be(8)2+(8)2=82∴ Unit vector parallel to the given vectors will be, i^+j^2
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Unit vector parallel to the resultant of vector 8i^ arid 8j^ will be