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 cricket ball of mass moving at towards a bat rebounds at in the opposite direction. The contact time is .
Total: 5 marks
(a) Taking the rebound direction as positive, find the change in momentum. (2 marks)
(b) Find the average force on the ball. (2 marks)
(c) State the direction of the force. (1 mark)
Something wrong with this item?