Last updated on Oct 23, 2026

Using Moments - Harder (AQA A-Level Mathematics): Flashcards

📚Flashcards

Revision Notes Model Answers Quizzes Flashcards Exam Questions

Using Moments - Harder

Sign up to keep revising.Create a free account to study more flashcards and track your progress.

Practise the cards

10 cards from this deck

Show

What is a nonuniform rod?

A rod with centre of mass not at its centre

Why nonuniform? (thickness)

Different thicknesses at different points

Why nonuniform? (material)

Different materials with different densities

Rod: $4$ m, $6$ N, COM $2.4$ m from $A$ . Reaction at $A$ ?

$2.4$ N

Rod: $4$ m, $6$ N, COM $2.4$ m from $A$ . Reaction at $B$ ?

$3.6$ N

Bar $5$ m, reactions $3$ N & $7$ N. Weight?

$10$ N

Bar $5$ m, $10$ N, reactions $3$ N & $7$ N. COM from $A$ ?

$3.5$ m

Best pivot point in moments problems?

Where unknown forces act (eliminates them from equation)

Vertical force equilibrium condition

$sum F_y = 0$

Moments equilibrium condition

$sum ext{Moments} = 0$

Explore AQA A-Level Mathematics Revision Notes by Topics

Moments

Explore AQA A-Level Mathematics Model Answers by Topics

Moments

Explore AQA A-Level Mathematics Quizzes by Topics

Moments

Explore AQA A-Level Mathematics Exam Questions by Topics

Moments

Join 100,000+ A-Level students studying Flashcards with us.

Select your subjects, and get access to A+ resources today.