Problem 11.9 - Determine the principal moments of inertia and principal axes having their origin at given point O. மற்மைத்பணத்áoog
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- w Determine the moment of Inertia of the quarter of the circle having a radius of óm shown in the figure with respect to the given y- axis. * Y x² + y² = r² 508.938 m None of the above 254.469 m* O 127.235 m O 1017.876 mThe equation of ellipse passing through (0, 8), center at origin, latus rectum three times the distance from center to focus is (x²/A)+(y²/B)=1 a. What is the value of A? b. What is the value of B?14. The moment of inertia about x-axis for rectangular area A = (20 x 10) in2 is: 6666.66 in4 1666.66 in4 2666.66 in4 3666.66 in4
- Quèstion 40 Four 7.5-kg spheres are located at the conners of a square of side 0.80 m. Calculate the magnitude and direction of the gravitational force exerted on one sphere by the other three. O A. 1.18x108 N O B.g.80x10 N OC1.47x188 N OD.1.12x108 N O E. None of the above c Question 40 A Moving to another question will save this response. acer F12 PrtSc Pause Del F7 F8 F9 F10 F11 F4 F5 F6 Scr Lk SysRq Break Ins DIO & 4 € 7 9. R YThe motion of a particle is defined by x = 6t"4 - 2t°3 - 12t^2 + 3t + 3, when x and t are expressed in meters and seconds, respectively. • When a = 0, determine the time • When a= 0, determine the velocity When a = 0, determine the positionCalculate the moments of inertia about both centroidal axes for the built-up cross section 4 E sym. X W840 x 329 W530 × 72 X
- 2. Determine the moment of inertia along x & y axis and polar moment of inertia with respect to the given axis using the figure below. у аxis 4.5 in 0.5 in 0.5 in 0.5 in 0.5 in 1 in 1 in 2.5 in 0.5 in 0.5 in 0.5 in 0.5 in 0,5 in 0.5 in - х ахis 2 in 3.5 inCalculate the centroidal coordinates of the plane region shown. Determine also the moment of inertia I,. y 20 80 20 20 60 Dimensions in mm Figure P8.18Determine the moments of inertia I, and I, of the area shown about vertical and horizontal axes running through the centroid of the area, if b= 38 mm. The value of I, is The value of I, is 42 mm 28 mm B 489 x 103 mm4 160 103 mm4 x
- Q4. Calculate the resultant couple moment acting on the steering wheel and express it as a Cartesian vector. 100 N 120 N 30 45 80 N 45° 0.8 m 80 N 120 N 30 100 NFor the angular section shown in the figure determine the following. a. The location of the X and Y axis. b. The centroidal moments of Inertia Igx and Igy c. The moments of Inertia Ix and Iỵ d. The product of the Moment of Inertia e. The moment of inertia about x' axis through O and angle of 30° with the horizontal H=100mm, W=75mm, t=10mm, G-20mm Y W W H16. The rectangular coordinates of a particle are given in millimeters as functions of time t in seconds by x = 20t + 3t² = 40 sin 2t, and z = 30 cos 2t. Determine the angle Teta1 between the acceleration a and the velocity v and the angle Teta2 between the position vector r and the acceleration a, both at time t = 3s.