Use g=9.8g = 9.8g=9.8 m s−2^{-2}−2.
A block of mass 8 kg is at rest on a rough horizontal plane. The coefficient of friction between the block and the plane is 0.25.
A horizontal force of magnitude 30 N is applied to the block.
Find the acceleration of the block.
106 exam-style questions on WJEC A Level Maths 4.9 Forces and Newton's laws (A-level only), covering 4.9.1 Forces and Newton's laws (A-level only), 4.9.2 Forces and Newton's laws (A-level only), 4.9.3 Forces and Newton's laws (A-level only), 4.9.4 Forces and Newton's laws (A-level only), and 4.9.5 Forces and Newton's laws (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.