The components of a vector along the
and y directions are (n + 2) and 1
respectively. If the coordinate system is
rotated by an angle 60° then the
components changes to n and 3. Find the
value of n.
A
5.5
B
C
3.5
D
1
Answers
Answered by
0
Answer:
answer = 1
Explanation:
=√(n+2)²+1 = √n²+3²
=√(n+2)²+1 = √n²+9 [squaring both sides]
=n²+4+4n+1 = n²+9
=n²-n²+4n = 9-4-1
=4n = 4
⇒SO
n=1
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