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For zero resultant force in two dimensions, what equations must hold?
A
Its perpendicular distance is zero, so M=F×0=0M=F\times0=0M=F×0=0.
B
- Horizontal: ∑Fx=0\sum F_x=0∑Fx=0
- Vertical: ∑Fy=0\sum F_y=0∑Fy=0
C
Moments are measured in newton metres (N m).
D
4RB=60(2)+40(3)4R_B=60(2)+40(3)4RB=60(2)+40(3), so RB=60 NR_B=60\text{ N}RB=60 N.
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3.4.2 Equilibrium of a rigid body (A-level only) Flashcards
21 flashcards on OCR A Level Maths 3.4.2 Equilibrium of a rigid body (A-level only): the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.