2. A vector of length 1 is turned through the angle g about its tail. What is the change in the position vector of its head ?(a)lcos (2) (b) 21 sin (g/2)(c) 21 cos (g/2) (d) I sin(g/2)point to another narallel to itself.

2. A vector of length 1 is turned through the angle g about its tail.

1.	2. A vector of length 1 is turned through the angle g about its tail. What is the change in the position vector of its head ?(a)lcos (2) (b) 21 sin (g/2)(c) 21 cos (g/2) (d) I sin(g/2)point to another narallel to itself.
Answer» (C) 21 COS (g/2) is the CORRECT ANSWER

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2. A vector of length 1 is turned through the angle g about its tail. What is the change in the position vector of its head ?(a)lcos (2) (b) 21 sin (g/2)(c) 21 cos (g/2) (d) I sin(g/2)point to another narallel to itself.​

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2. A vector of length 1 is turned through the angle g about its tail. What is the change in the position vector of its head ?(a)lcos (2) (b) 21 sin (g/2)(c) 21 cos (g/2) (d) I sin(g/2)point to another narallel to itself.