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A-Level MathematicsYear 2019Q5

5. A particle P of mass 3m and a particle Q of mass 2m are moving along the same straight line on a smooth horizontal plane. The particles are moving in opposite directions towards each other and collide directly. Immediately before the collision the speed of P is u and the speed of Q is 2u. Immediately after the collision P and Q are moving in opposite directions. The coefficient of restitution between P and Q is e. (a) Find the range of possible values of e, justifying your answer. (8) Given that Q loses 75% of its kinetic energy as a result of the collision, (b) find the value of e. (3) ___________________________________________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___________________________________________

Paper Source:9FM0_3C_que_20190621.pdf

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Exam Specification Info

This question is part of the UK A-Level Mathematics syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.

Syllabus levelAdvanced Level (A-Level)

SubjectMathematics

Official MarksVariable (2–6 marks)

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