A 3kg mass is sliding across a horizontal surface at a constant speed while being pulled by rope with tension 20N held at a 53 degree angle above the horizontal. The force of friction is most nearly A. 30N B. 12N C. 16N D. 20N E. 1N
obtain the resultant and direction of each pair of the forces 1.20N on top of a triangle and, 15N3 under the triangle and 45 as the degree of the triangle. 2.20N on top of right angle triangle and 15N under the right angle triangle.