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Recent questions tagged exercise2-2
Questions
Forces of magnitudes $3$ and $4$ units acting in the directions $\overrightarrow{6i}+ \overrightarrow{2j} +\overrightarrow{3k}$ and $\overrightarrow{3i}-\overrightarrow{2j}+\overrightarrow{6k}$ respectively act on a particle which is displaced from the point $(2,2,-1)$to$( 4,3,1)$. find the work done by the forces.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-2
p62
q8
asked
Apr 4, 2013
by
poojasapani_1
1
answer
The constant forces $\overrightarrow{2i}-\overrightarrow{5j}+ \overrightarrow{6k}, -\overrightarrow{i}+\overrightarrow{2j}-\overrightarrow{k},$and $\overrightarrow{2i}+\overrightarrow{7j} $ act on a particle which is displaced from position $\overrightarrow{4i}-\overrightarrow{3j}-\overrightarrow{2k}$ to position $\overrightarrow{6i}+\overrightarrow{j}-\overrightarrow{3k}$. find the work done.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-2
p62
q7
asked
Apr 4, 2013
by
poojasapani_1
1
answer
A force magnitude $5$ units acting parallel to $\overrightarrow{2i}-\overrightarrow{2j}+ \overrightarrow{k}$ displaces the point of application from $(1,2,3)$to $(5,3,7) $ find the work done.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-2
p62
q6
oct-2006
oct-2009
modelpaper
asked
Apr 4, 2013
by
poojasapani_1
1
answer
Find the work done by the force $f=\overrightarrow{2i} + \overrightarrow{j}+\overrightarrow{k}$ acting on particle, if the particle is displaced from the point with position vector $\overrightarrow{2i}+ \overrightarrow{2j}+ \overrightarrow{2k}$ to the point with the position vector $\overrightarrow{3i}+\overrightarrow{4j}+\overrightarrow{5k}$ .
tnstate
class12
bookproblem
ch2
sec-1
exercise2-2
p62
q5
asked
Apr 4, 2013
by
poojasapani_1
1
answer
Prove by the vector method , cos$(A+B)=$ cos$A$ cos$B$ - sin$A$ sin$B$
tnstate
class12
bookproblem
ch2
sec-1
exercise2-2
p62
q4
mar-2006
mar-2008
modelpaper
asked
Apr 3, 2013
by
poojasapani_1
1
answer
Prove by vector method , The sum of the squares of the diagonals of a parallelogram is equal to the sum of the squares of the sides.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-2
p62
q3
asked
Apr 3, 2013
by
poojasapani_1
1
answer
Prove by vector method, The mid point of the hypotenuse of a right angled tringle is equidistant from its vertices.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-2
p62
q2
asked
Apr 3, 2013
by
poojasapani_1
1
answer
Prove by the vector method If the diagonals of a parallelogram are equal than it is a rectangle.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-2
p62
q1
asked
Apr 3, 2013
by
poojasapani_1
1
answer
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