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Byju's Answer
Standard XII
Physics
Displacement in 2D Motion
Consider the ...
Question
Consider the following:
(1)
4
^
i
×
3
^
i
=
→
0
(2)
4
^
i
3
^
i
=
4
3
Which of the above is/are correct?
A
(1) only
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B
(2) only
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C
Both (1) and (2)
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D
Neither (1) nor (2)
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Solution
The correct option is
A
(1) only
For (1), cross product of
2
vectors in same direction is
0
.
∴
4
^
i
×
3
^
i
=
→
0
So, (1) is true.
For(2) , division of vector is not allowed.\
So,
4
^
i
3
^
i
is not possible
Thus, (2) is not true.
Hence, option A is correct.
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0
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