Mathematics 9709/43 — May/June 2021

Cambridge A-Level · Mechanics · worked solutions for every part, with the mark scheme

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Topics Kinematics of Motion in a Straight Line · Newton's Laws of Motion · Forces and Equilibrium · Energy, Work and Power · Momentum

Q14MMomentumFree sample

Particles $P$ of mass $0.4\text{ kg}$ and $Q$ of mass $0.5\text{ kg}$ are free to move on a smooth horizontal plane. $P$ and $Q$ are moving directly towards each other with speeds $2.5\text{ m s}^{-1}$ and $1.5\text{ m s}^{-1}$ respectively. After $P$ and $Q$ collide, the speed of $Q$ is twice the speed of $P$ .

Find the two possible values of the speed of $P$ after the collision.

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6 more questions

Q2Energy, Work and Power · Newton's Laws of Motion · Forces and Equilibrium5M
Q3Forces and Equilibrium6M
Q4Kinematics of Motion in a Straight Line6M
Q5Energy, Work and Power · Kinematics of Motion in a Straight Line · Newton's Laws of Motion9M
Q6Kinematics of Motion in a Straight Line10M
Q7Forces and Equilibrium · Newton's Laws of Motion · Kinematics of Motion in a Straight Line10M

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