The magnitudes of mutually perpendicular forces a, b and c are 2, 10 a – McqOptions

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1.	The magnitudes of mutually perpendicular forces a, b and c are 2, 10 and 11 respectively. Then the magnitude of its resultant is.?
A.	9
B.	15
C.	12
D.	None
Answer» C. 12

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