Acceleration on Rough Surface
A horizontal force, just sufficient to move a body of mass 4 kg lying on a rough horizontal surface, is applied. The coefficients of static and kinetic friction between the body and the surface are 0.8 and 0.6 respectively. If the force continues to act even after the block has started moving, the acceleration of the block in ms⁻² is (Take g = 10 ms⁻²)