Mathematics 9709/42 — May/June 2018

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

questions

marks

minutes

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

Q14MEnergy, Work and PowerFree sample

A man has mass $80\text{ kg}$ . He runs along a horizontal road against a constant resistance force of magnitude $P\text{ N}$ . The total work done by the man in increasing his speed from $4\text{ m s}^{-1}$ to $5.5\text{ m s}^{-1}$ while running a distance of $60\text{ metres}$ is $1200\text{ J}$ . Find the value of $P$ .

The rest of this paper

6 more questions

Q2Energy, Work and Power · Newton's Laws of Motion4M
Q3Forces and Equilibrium4M
Q4Kinematics of Motion in a Straight Line9M
Q5Forces and Equilibrium7M
Q6Kinematics of Motion in a Straight Line8M
Q7Newton's Laws of Motion · Forces and Equilibrium14M

Loading the full paper…