Pearson Edexcel Level 3 GCE, Further Mathematics Advanced Subsidiary Further Mathematics options 25: Further Mechanics 1 (Part of options C, E, H and J)question booklet and mark scheme results November 2021

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Pearson Edexcel Level 3 GCE, Further Mathematics Advanced Subsidiary Further Mathematics options 25: Further Mechanics 1 (Part of options C, E, H and J)question booklet and mark scheme results Novembe... r 2021 1. 0.5m 0.8m α Figure 1 A small book of mass m is held on a rough straight desk lid which is inclined at an angle α to the horizontal, where tanα = 3 4 . The book is released from rest at a distance of 0.5m from the edge of the desk lid, as shown in Figure 1. The book slides down the desk lid and then hits the floor that is 0.8m below the edge of the desk lid. The coefficient of friction between the book and the desk lid is 0.4 The book is modelled as a particle which, after leaving the desk lid, is assumed to move freely under gravity. (a) Find, in terms of m and g, the magnitude of the normal reaction on the book as it slides down the desk lid. (2) (b) Use the work-energy principle to find the speed of the book as it hits the floor. (5) _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ __________________________________________________________________ [Show More]

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