Neco Model Questions Vol1 2022 Physics Question 3
Practice objective / multiple choice question 3 from the 2022 Neco Model Questions Vol1 Physics examination.
A 5.0 kg block is released from rest at the top of a smooth 30° incline that is 4.0 m long. The coefficient of kinetic friction between the block and the incline is unknown. At the bottom of the incline the block compresses a horizontal spring of force constant \(k = 800\) N m\(^{-1}\) and comes to rest after compressing the spring by 0.10 m. (a) Determine the coefficient of kinetic friction \(\mu_k\) for the block‑incline contact. (b) Calculate the work done by the friction force during the motion (state its sign). Use \(g = 9.8\) m s\(^{-2}\).
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About This Question
This is Neco Model Questions Vol1 2022 Physics Question 3. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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