In this question use g=9.8g = 9.8g=9.8 m s−2^{-2}−2.
A block of mass 25 kg is at rest on a rough horizontal floor. The coefficient of friction between the block and the floor is 0.4.
A force of magnitude F F\,F newtons pulls the block at an angle of 20° 20°\,20° above the horizontal, and the block is on the point of sliding.
Find the value of FFF.