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Question

Statement 1: Scalar components of the vector with initial point (2,1) and terminal point (5,7) are 6 and 7.
Statement 2: Vector components of the vector with initial point (2,1) and terminal point (5,7) are 7^i and 6^j.

A
Only statement 1 is correct
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B
Only statement 2 is correct
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C
both statements are true
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D
both statements are false
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Solution

The correct option is B Only statement 2 is correct
A vector with initial point (x1,y1) and terminal/final point (x2,y2) is given (x2x1)^i+(y2y1)^j
vector with initial point A(2,1) and final point B(5,7) can be given by
AB=(x2x1)^i+(y2y1)^j=(52)^i+(71)^j
=(7)^i+6^j
Hence, the required scalar components (coefficients of ^i and ^j) are 7 and 6 while the vector components are 7^i and 6^j

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