MECHANICAL ENGINEERING SCIENCE
1. Determine the tension developed in wires CA and CB required to hold the 10-kg cylinder
(shown below) stationary. Take θ = 40°
2. A boat is pulling a parasail and rider at a constant speed. Knowing that the rider weighs
550 N and that the resultant force R exerted by the parasail on the towing yoke A forms
an angle of 65° with the horizontal, determine (a) the tension in the tow rope AB, (b) the
magnitude of R.
MECHANICAL ENGINEERING SCIENCE
3. Two traffic signals are temporarily suspended from a cable as shown. Knowing that the
signal at B weighs 300 N, determine the weight of the signal at C.
4. Ropes AB and AC are thrown to a boater whose canoe had capsized. Knowing that α =
25° and that the magnitude of the force FR exerted by the river on the boater is 70 lb,
determine the tension (a) in rope AB, (b) in rope AC.