Answer to Question #64163 in Mechanics | Relativity for Edu

Question

If the coefficient of friction between a 500-gram mass and a rough board is 0.4, find the net force acting on the body when a) the board is horizontal and a pull of 100 grams is applied to the body; b) the board makes an angle of 30 degree with the horizontal. Assume force to be always parallel to the board.