if A = 2i +3j and B = i - j then the vector component A perpendicular to vector B in the same plane is
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- Vector Product
- Given A⃗ = 2î + 3ĵ and B⃗ = î...
- PHYSICS
- Given
- A
- =2
- i
- ^
- +3
- j
- ^
- and
- B
- =
- i
- ^
- +
- j
- ^
- . The component of vector
- A
- perpendicular to vector
- B
- and in the same plane as
- B
- is
- We know, (
- i
- +
- j
- )(
- i
- −
- j
- )=0
- Vector (
- i
- −
- j
- ) is perpendicular to
- B
- .
- Let, (
- i
- −
- j
- ) =
- C
- Now, (
- A
- .
- C
- )=(2
- i
- +3
- j
- )(
- i
- −
- j
- )
- The required component is:
- (
- A
- .
- C
- )
- C
- C
- =2
- i
- +3
- j
- )(
- i
- −
- j
- )
- ∣
- ∣
- ∣
- ∣
- i
- −
- j
- ∣
- ∣
- ∣
- ∣
- (
- i
- −
- j
- )
- (
- A
- .
- C
- )
- C
- C
- =−
- 2
- 1
- (
- i
- −
- j
- ).......(since, C=
- (1+1)
- =
- 2
- )
- (
- A
- .
- C
- )
- C
- C
- =
- 2
- 1
- (
- j
- −
- i
- )
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