|The shown block moves upward from position (A) to (B) though the distance (d = 4 m). Take (F1 = 25 N, F2 = 50 N, F3 = 100 N). |3) What is the amount of work produced by force (F,)? d = 4 m a) 11.4 J e) 18.5 J c) 64.3 J 8) None of them d) 0J b) 44.1J f) 68.4 J 20 4) What is the total amount of work produced by the three forces? d) 11.25 J 50 a) 2.41 J e) 4.13 J b) 19.74 J f) 17.72 J c) 6.92 J g) None of them ...................

O 1:r :Q1) Multiple Choice Question is the action of one body on another. a-) Force b-) Mass c) Acceleration d-) Time 2- The unit of the moment of force is. a-) Kg/m b-) m/s e-)N. m 3. is the force resisting the relative motion of two surfaces in d-) Kg. m/ s contact. a-) Moment b-) Moment of couples c-) Lift force d-) Friction force is a vector quantity. a-) Time b-) length c) velacity d-) Mass 4- 5- is the science which deals with the effects of forces on objects. a-) Mathematics b-) Mechanics c-) Chemistry d-) Computer إجابتك Q2) Determine the magnitude of the resultant force (R) acting on the screw eye, .as shown in Figure 1 45° 60° 2 kN II