how to solve this problem
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position vector :- The vector which gives position of an object along coordinate system is called position vector.
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when "vector m" is turn with an angle "β" then it's head create the "arc" but "arc" give us "distance" traveled by position vector of vector "m" which is not vector.But we we need "vector" i.e(that is ) "displacement [the change of position vector with respect to time is called displacement]".
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correct option is
a] 2m sin(β/2)
- see attachment/
_______________________
when "vector m" is turn with an angle "β" then it's head create the "arc" but "arc" give us "distance" traveled by position vector of vector "m" which is not vector.But we we need "vector" i.e(that is ) "displacement [the change of position vector with respect to time is called displacement]".
_______________________
correct option is
a] 2m sin(β/2)
- see attachment/
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sikriwal36:
i can ask how you had derive cos into givin so!
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