NEET Class neet Answered
Solutions 2, 3,&4 please sir ,q.n 3 nhi ban raha hai
Asked by brijk456 | 31 Jul, 2019, 10:14: AM
Expert Answer
Let the reference direction for all the forces be X-axis of cartesian coord system.
Vectors of all the three forces are drawn in figure.
Let i, j are unit vectors along the X-axis and Y-axis respectively
F1 = 300 i ; F2 = 200√3 i + 200 j ; F3 = -200√3 i + 200 j
Resultant F1+ F2 +F3 = 300 i + 400 j
Magnitude of resultant force = 
; direction = sin-1 (400/300) = 53°
; direction = sin-1 (400/300) = 53°Hence resultant of the given three forces is 500 N at 53°
Answered by Thiyagarajan K | 31 Jul, 2019, 11:57: AM
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