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=815\displaystyle \tan \theta = \frac{8}{15}tanθ=158. The block is released from rest. The coefficient of friction between the block and the floor is 0.3.

Find the acceleration of the block, giving your answer in exact form.
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.