3 Mechanics

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Question 35

A particle is held in equilibrium by three horizontal forces. Two of the forces are $(8i+6j)(8\mathbf{i} + 6\mathbf{j})$ N and $(−3i+4j)(-3\mathbf{i} + 4\mathbf{j})$ N, where $i\mathbf{i}$ and $j\mathbf{j}$ are perpendicular unit vectors.

The third force is $F\mathbf{F}$ N.

a.

Find $F\mathbf{F}$ in component form.

[3]

b.

Find the magnitude of $F\mathbf{F}$ .

[2]

3 Mechanics

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Question 35

A particle is held in equilibrium by three horizontal forces. Two of the forces are $(8i+6j)(8\mathbf{i} + 6\mathbf{j})$ N and $(−3i+4j)(-3\mathbf{i} + 4\mathbf{j})$ N, where $i\mathbf{i}$ and $j\mathbf{j}$ are perpendicular unit vectors.

The third force is $F\mathbf{F}$ N.

a.

Find $F\mathbf{F}$ in component form.

[3]

b.

Find the magnitude of $F\mathbf{F}$ .

[2]

3 Mechanics

Question 35

Markscheme

3 Mechanics

Question 35

Markscheme

3 Mechanics

Question 35

3 Mechanics Questions

3 Mechanics

Question 35

3 Mechanics Questions