Situation 9. If P = 20 lb, replace the three couples with a single equivalent couple, specifying its magnitude and the direction of %3D its axis. 15 in. 16 lb 15 in. 40 lb E 16 lb 40 lb 10 in. -P D 10 in. 10 in.

Situation 9. If P = 20 lb, replace the three couples with a single equivalent couple, specifying its magnitude and the direction of its axis. 15 in. 16 lb В 15 in. 40 lb E 16 lb A 40 lb 10 in. -P D C 10 in. 10 in.

Determine the mass moment of inertia Ix of the body and express the result in terms of the total mass m of the body. The density is constant.

With FBD

Number 9

4.4

Using the Laws of Static Equilibrium determine Reaction Left and Reaction Right. EACH block on grid =1ft  Eg. 20 blocks = 20ft

4.4.4.4.4.4.4

The cross section of the rim of an iron flywheel (S+3) ft. In diameter is a triangle 12" by 3". How much does the rim weigh? Note: Iron weighs 450lb/cu ft. S=10

2. Given the equations from Joint B Solve for the force in BD and BE. 600 lb 600 lb 600 lb 600 lb BD D 300 lb B. F 2 ft 4 in. 300 lb| 6 ft 1500 lb ВЕ E G H. 8 ft 8 ft→-8 ft→-8 ft 8. BD 8. ΣΕ-0= 1500| 8. BE 10 10 6. = 0 =1500 10 1, 600 – BD 8 6. + BE 10 3. Solve for x and y. 1200 lb 30°