For a particle subjected to several coplanar forces to remain at rest

PHYSICS · Single correct · CBSE · Physics · Force and Laws of Motion · Force and Laws of Motion

Problem

For a particle subjected to several coplanar forces to remain at rest, which one of the following conditions must necessarily be satisfied? (a) ∑Fx=0\sum F_x = 0 only (b) ∑Fx=0 and ∑Fy=0\sum F_x = 0 \,\text{and}\, \sum F_y = 0 (c) ∑Fx=∑Fy\sum F_x = \sum F_y (d) ∑∣F∣=0\sum |F| = 0

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