if f = 4i – 3j then find prependicular vector to f and solve step by step
gourav , 5 Years ago
Grade 12th pass
Mechanics> if f = 4i – 3j then find prependicular ve...
3 Answers
Saurabh Koranglekar
Last Activity: 5 Years ago
Dear student
Let q be another vector ai +bj
f.q = 0
4a- 3b = 0 is condition
Regards
Arun
Last Activity: 5 Years ago
Talking about two perpendicular vectors,
The dot productof both is zero. Always.
a•b= ab cosα
So, the vector is 4i-3j
By the above relation we get,
(4i-3j).
(4i-3j).(ai+bj)=0
4a-3b=0
4a=3b
a/b=3/4
Therefore the vector perpendicular to given vector is 3i+4j.
aswanth nayak
Last Activity: 5 Years ago
Dear student,
Let x be a vector ai+bj
The dot product of both the vectors is ZERO
Talking about two perpendicular vectors,
a•b= ab cosα
So, the vector is 4i-3j
By the above relation we get,
(4i-3j).
(4i-3j).(ai+bj)=0
4a-3b=0
4a=3b
a/b=3/4
Therefore the vector perpendicular to given vector is 3i+4j.
hope this helps you
Regards
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