Mathematics 9709/41 — October/November 2011

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

questions

marks

minutes

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

Q13MEnergy, Work and PowerFree sample

One end of a light inextensible string is attached to a block. The string is used to pull the block along a horizontal surface with a speed of $2\text{ m s}^{-1}$ . The string makes an angle of $20^{\circ}$ with the horizontal and the tension in the string is $25\text{ N}$ . Find the work done by the tension in a period of $8$ seconds.

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6 more questions

Q2Newton's Laws of Motion5M
Q3Forces and Equilibrium6M
Q4Kinematics of Motion in a Straight Line · Newton's Laws of Motion8M
Q5Forces and Equilibrium8M
Q6Energy, Work and Power10M
Q7Kinematics of Motion in a Straight Line10M

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