Neco Model Questions Vol1 2019 Physics Question 15
Practice objective / multiple choice question 15 from the 2019 Neco Model Questions Vol1 Physics examination.
The diagram shows a smooth incline of length 5 m making an angle of \(30^{\circ}\) with the horizontal. A block of mass 2 kg is attached to a light inextensible string that passes over a frictionless pulley at the top of the incline. A constant horizontal force of 20 N is applied to the block (direction shown horizontally to the right). The coefficient of kinetic friction between the block and the incline is 0.2. The block starts from rest at the bottom of the incline and slides up the incline. Using the work‑energy principle, determine the speed of the block when it reaches the top of the incline. Give your answer in \(\text{m\,s}^{-1}\) to two significant figures.
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About This Question
This is Neco Model Questions Vol1 2019 Physics Question 15. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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