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Recent questions tagged addition-of-vectors
Questions
The vector $\hat i+x\hat j+3\hat k$ is rotated about angle $\theta$ and is doubled in magnitude, then it becomes $4\hat i+(4x-2)\hat j+2\hat k$. The value of $x=?$
jeemain
math
class12
ch10
vector-algebra
easy
addition-of-vectors
q17
asked
Nov 4, 2013
by
rvidyagovindarajan_1
1
answer
If $\overrightarrow p,\overrightarrow q$ are non collinear vectors, then $[\hat i\:\overrightarrow p\:\overrightarrow q]\hat i+[\hat j\:\overrightarrow p\:\overrightarrow q]\hat j+[\hat k\:\overrightarrow p\:\overrightarrow q]\hat k$=?
jeemain
math
class12
ch10
vector-algebra
medium
addition-of-vectors
vector-product
q13
asked
Nov 1, 2013
by
rvidyagovindarajan_1
1
answer
The angle between the diagonals of a parallelogram $ABCD$, where $\overrightarrow {AB}=3\hat i-2\hat j+2\hat k$ and $\overrightarrow {BC}=-\hat i-2\hat k$ is?
jeemain
math
class12
ch10
vector-algebra
easy
addition-of-vectors
q12
asked
Nov 1, 2013
by
rvidyagovindarajan_1
1
answer
If $|\overrightarrow a|=2,\:|\overrightarrow b|=3\:and\:|\overrightarrow c|=4$ and $\overrightarrow a+\overrightarrow b+\overrightarrow c=\overrightarrow O$, then $\overrightarrow b.\overrightarrow c+\overrightarrow c.\overrightarrow a+\overrightarrow a.\overrightarrow b=?$
jeemain
math
class12
ch10
vector-algebra
easy
vector-product
addition-of-vectors
q11
asked
Oct 30, 2013
by
rvidyagovindarajan_1
1
answer
If $\overrightarrow a,\:\overrightarrow b\:and\:\overrightarrow c$ are mutually $\perp$ vectors of equal magnitude then the angle $\theta$ made by $\overrightarrow a+\overrightarrow b+\overrightarrow c$with any one of these 3 vectors is ?
jeemain
math
class12
ch10
vector-algebra
easy
addition-of-vectors
vector-product
q10
asked
Oct 30, 2013
by
rvidyagovindarajan_1
1
answer
The sides of a parallelogram are given by vectors $2\hat i+4\hat j-5\hat k$ and $\hat i+2\hat j+3\hat k$. Unit vector along one of the diagonals is given by ?
jeemain
math
class12
ch10
vector-algebra
easy
addition-of-vectors
q9
asked
Oct 30, 2013
by
rvidyagovindarajan_1
1
answer
If $ABCD$ is a Rhombus, with position vectors of vertices,$\overrightarrow {OA},\:\overrightarrow {OB},\:\overrightarrow {OC}\:and\:\overrightarrow {OD}$, then $\overrightarrow {OA}+\overrightarrow {OB}+\overrightarrow {OC}+\overrightarrow {OD}=?$
jeemain
math
class12
ch10
vector-algebra
medium
addition-of-vectors
q6
asked
Oct 29, 2013
by
rvidyagovindarajan_1
1
answer
$(\hat i\:\hat j\:\hat k)+(\hat j\:\hat k\: \hat i)+(\hat k\:\hat j\:\hat i)=?$
jeemain
math
class12
ch10
vector-algebra
easy
addition-of-vectors
q5
asked
Oct 28, 2013
by
rvidyagovindarajan_1
1
answer
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