calculate the magnitude of the resultant of all the forces acting on the object
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F1 = 8cos 0 i + 8sin 0 j
= 8 × 1 i + 8 × 0 j
= 8i
F2 = 9cos 90 i + 9sin 90 j
= 9 × 0 i + 9 × 1 j
= 9j
F3 = 2cos 180 i + 2sin 180 j
= 2 × (-1) i + 2 × 0 j
= - 2i
F4 = 6cos 55 i + 6 sin 55 j
= -6 × 0.5 i + (-6 × 0.8 j)
= - 3.0i - 4.8 j
F(resultant) = 8i + 9j + ( -2i ) - 3i - 4.8 j
= 3i + 3.8 j
root < 3 × 3 + 3.8 × 3.8 >
= root ( 9 + 14.44 )
= root ( 23.44 )
HOPE THIS HELPS YOU DEAR
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