Mathematics 9709/41 — May/June 2015

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

Q1Forces and EquilibriumEnergy, Work and PowerFree sample

A block $B$ of mass $2.7\text{ kg}$ is pulled at constant speed along a straight line on a rough horizontal floor. The pulling force has magnitude $25\text{ N}$ and acts at an angle of $\theta$ above the horizontal. The normal component of the contact force acting on $B$ has magnitude $20\text{ N}$ .

(i)

Show that $\sin \theta = 0.28$ .

(ii)

Find the work done by the pulling force in moving the block a distance of $5\text{ m}$ .

The rest of this paper

6 more questions

Q2Forces and Equilibrium5M
Q3Forces and Equilibrium · Newton's Laws of Motion5M
Q4Energy, Work and Power6M
Q5Newton's Laws of Motion · Energy, Work and Power8M
Q6Kinematics of Motion in a Straight Line10M
Q7Newton's Laws of Motion · Forces and Equilibrium · Energy, Work and Power12M

Loading the full paper…