An iron block with a mass of 45 000 g rests on an incline plane of 16 to the horizontal. Take the coefficient friction as 0,25. Calculate the following: 1.1 the weight component perpendicular to the incline plane (423,916 N) 1.2 The weight component parallel to the incline plane (121,556 N) 1.3 1.4 The frictional force (105,979 N) The minimum force required the pull the block up the inclined plane (227,535 N)