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Determine the work done against air resistance.
Mathematics 9709 · AS & A Level · Energy, work and power
Energy, work and power — practice question
A particle with mass $1.6\text{ kg}$ is released from rest at a point $9\text{ m}$ above the horizontal ground. Immediately before it strikes the ground, the particle’s speed is $12\text{ m s}^{-1}$.
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This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Apply suvat to form an equation in $a$, for example $12^2 = 2 \times 9 \times a$ or $a = 8$” …
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