Determine that vector which when added to the resultant of 
and 
gives a unit vector along X-axis.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Resultant R = P + Q = (2 
+ 7 
– 10 
) + ( 
+ 2 
+3 
) = 3 
+ 9 
– 7 
But 
+ required vector = 
Or required vector = 
– 
= 
– (3 
+9 
–7 
) = – 2 
–9 
+7 
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