Case study·Standard multi-step (3/5)·No calculator
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Question
A drone moves east, then north, and finally west while surveying a field.
Total: 5 marks
(a) Find the total path length. (1 mark)
(b) Find the net eastward component of displacement. (1 mark)
(c) Find the magnitude of resultant displacement. (2 marks)
(d) Explain why the answer in part (a) is not the displacement. (1 mark)
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