Q:-21 State and prove parallelogram law of vector addition Discuss some special cases.
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Answers
Answer:
Parallelogram law of vector addition states that
if two vectors are considered to be the adjacent sides of a parallelogram, then the resultant of the two vectors is given by the vector that is diagonal passing through the point of contact of two vectors.
Proof:
Let
A
and
B
are the two vectors be represented by two lines
OP
and
OQ
drawn from the same point. Let us complete the parallelogram and name it as OPTQ. Let the diagonal be
OT
.
Since
PT
is equal and parallel to
OQ
, therefore, vector
B
can also be represented by
PT
.
Applying the triangle's law of vector to triangle OPT.
OT
=
OP
+
PT
⇒
R
=
A
+
B
.
Explanation:
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Explanation:
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Motion in a Plane
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State and prove parallelogr...
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Asked on May 01, 2020 by
Parekh Shokeen
State and prove parallelogram law of vector addition.
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ANSWER
- Parallelogram law of vector addition states that
if two vectors are considered to be the adjacent sides of a parallelogram, then the resultant of the two vectors is given by the vector that is diagonal passing through the point of contact of two vectors.
Proof:
Let
A
and
B
are the two vectors be represented by two lines
OP
and
OQ
drawn from the same point. Let us complete the parallelogram and name it as OPTQ. Let the diagonal be
OT
.
Since
PT
is equal and parallel to
OQ
, therefore, vector
B
can also be represented by
PT
.
Applying the triangle's law of vector to triangle OPT.
OT
=
OP
+
PT
⇒
R
=
A
+
B
.
(proved).
solution
