A block of mass 2kg is at rest on a rough plane inclined at an angle of θ∘ \theta^\circ\,θ∘ to the horizontal where tanθ=0.75\tan \theta = 0.75tanθ=0.75. The block is released from rest. The acceleration of the block is 4.31 ms−2^{-2}−2.

Find the coefficient of friction between the block and the floor.
108 exam-style questions on Edexcel A Level Maths Forces and Friction, covering 5.1 Resolving Forces, 5.2 Inclined Planes, and 5.3 Friction. Each one has a worked solution and a mark scheme showing where the marks go.