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Calculate the total work done by the cyclist in raising his speed from $8\,\text{m s}^{-1}$ to $16\,\text{m s}^{-1}$ over a distance of $100\,\text{m}$.
Mathematics 9709 · AS & A Level · Energy, work and power
Energy, work and power — practice question
The cyclist together with the bicycle has a combined mass of $72\,\text{kg}$. While moving on a horizontal road, the cyclist experiences a total resistive force of $28\,\text{N}$.
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This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Correct statement for either kinetic energy or work done against resistance, e.g. $\tfrac12 \times 72 \times 8^2$ or $28 \times 100$” …
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