IGCSE · Additional Mathematics 0606 · Vectors & calculus

Vectors in two dimensions: IGCSE Additional Mathematics questions with answers

Free Vectors in two dimensions questions for IGCSE Additional Mathematics (0606), part of Vectors & calculus. Each question has the answer and the marking points an examiner would look for.

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Vectors in two dimensions practice questions

Question 1Structured · 4 marksA* challenge

A boat travels at 8 m/s in still water. It heads due north across a river flowing at 6 m/s due east.

Find the resultant speed and the angle between the boat’s path and the bank.

[4]
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PartAnswer and marking pointsMarks
10 m/s; 53.1°
Pythagoras M1
10 m/s A1
tan θ = 8/6 M1
53.1° A1
4
Question 2Structured · 3 marks

p = 4i + 4j and q = −2i − 3j.

Find the unit vector in the direction of p + q.

[3]
Show answers and mark scheme
PartAnswer and marking pointsMarks
1√5(2i + j)
p + q = 2i + j B1
|p + q| = √5 M1
unit vector A1
3
Question 3Structured · 1 mark

State what is meant by the term unit vector.

[1]
Show answers and mark scheme
PartAnswer and marking pointsMarks
A vector of magnitude 1
A vector of magnitude 1 B1
1
Question 4Structured · 3 marks

p = 4i + 5j and q = −5i + 4j.

Find the unit vector in the direction of p + q.

[3]
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PartAnswer and marking pointsMarks
1√82(−i + 9j)
p + q = −i + 9j B1
|p + q| = √82 M1
unit vector A1
3
Question 5Structured · 3 marks

p = −5i + 2j and q = 4i − 4j.

Find the unit vector in the direction of p + q.

[3]
Show answers and mark scheme
PartAnswer and marking pointsMarks
1√5(−i − 2j)
p + q = −i − 2j B1
|p + q| = √5 M1
unit vector A1
3
Question 6Structured · 3 marks

p = −5i + j and q = −5i + 2j.

Find the unit vector in the direction of p + q.

[3]
Show answers and mark scheme
PartAnswer and marking pointsMarks
1√109(−10i + 3j)
p + q = −10i + 3j B1
|p + q| = √109 M1
unit vector A1
3

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Original Cambridge-style practice questions written for mentorriyaz.in. These are not Cambridge past paper questions, and this site is not affiliated with or endorsed by Cambridge University Press & Assessment. Updated 2026-11-04. Paper generator · mentorriyaz.in