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2 Unit AS 2: Applied Mathematics

A particle of mass 0.8 kg has acceleration $(−3i+5j)(-3\mathbf{i}+5\mathbf{j})$ m s $^{-2}$ under the action of a resultant force $F\mathbf{F}$ .

Find the angle between the acceleration and the vector $i\mathbf{i}$ .

[2]

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

[3]

2 Unit AS 2: Applied Mathematics Questions

A particle of mass 0.8 kg has acceleration $(−3i+5j)(-3\mathbf{i}+5\mathbf{j})$ m s $^{-2}$ under the action of a resultant force $F\mathbf{F}$ .

Find the angle between the acceleration and the vector $i\mathbf{i}$ .

[2]

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

[3]