Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If a of magnitude 
is collinear with the vector 
, and makes an acute angle with thepositive direction of 
axis, then the vector a is equal to 
. Find 
.
Text Solution
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38
Let 
Since 
and 
are collinear, so 
and 
, (constant)
Since a makes an acute angle with the direction of 
axis, Hence, its 
component must be positive. This is possible only when 
.
Hence, 
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