Mathematics 9709 · AS & A Level · Probability

Probability — practice question

A horizontal circular disc turns at a steady angular speed of $9\ \text{rad s}^{-1}$ around its centre $O$. A particle with mass $0.05\ \text{kg}$ is positioned on the disc $0.4\ \text{m}$ from $O$. The particle travels together with the disc, with no slipping.
(main)[3]

Calculate the magnitude of the resultant force exerted on the particle by the disc.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: Applies the impulse relation $0.05 \times 9^2 \times 0.4 = H$

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