Block A, which is at rest on a horizontal rough surface, is used as an anchor to hold block B, with a mass of 56 kg, in the air at a certain height above the ground. The two blocks are connected with rope R, which makes an angle of 35° with the vertical. Block B is suspended from the ceiling with cable C. Refer to the diagram below.
Block A experiences a frictional force of magnitude 200 N. The system is stationary. 2.1 Define the term resultant vector. (2)
2.2 What is the magnitude of the resultant force acting on block B? (1)
2.3 Draw a labelled free-body diagram indicating all the forces acting on block B. (3)
2.4 Determine the horizontal component of the force in rope R. (1)
2.5 Calculate the vertical component of the force in cable C. (4)
2.6 Calculate the angle θ between the cable and the ceiling. (2)
[13]