Long answer·Hard exam skill (4/5)·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 cart moving at collides and sticks to a cart at rest. The combined carts then move up a smooth incline. Take .
Total: 4 marks
(a) Find the speed just after collision. (1 mark)
(b) Find the maximum vertical height reached on the incline. (1 mark)
(c) Find the kinetic energy lost during collision. (2 marks)
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