Neco 2025 Further Mathematics Question 31
Practice objective / multiple choice question 31 from the 2025 Neco Further Mathematics examination.
An inclined plane makes an angle of \(30^{\\circ}\) with the horizontal and has length \(5\\,\\text{m}\). A block of unknown mass slides down the plane without initial speed and reaches the bottom with speed \(4\\,\\text{m\\,s^{-1}}\). The kinetic‑friction coefficient is unknown. The same block is then attached to a spring of constant \(200\\,\\text{N\\,m^{-1}}\) that is compressed \(0.10\\,\\text{m}\) at the top of the plane and released; the block reaches the bottom with speed \(5\\,\\text{m\\,s^{-1}}\). Assuming \(g=9.8\\,\\text{m\\,s^{-2}}\), determine the coefficient of kinetic friction \(\\mu\) (to three significant figures).
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About This Question
This is Neco 2025 Further Mathematics Question 31. It is one of the objective questions from the 2025 Neco Further Mathematics examination.
Difficulty level: Hard .
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