A rod of mass M and length L is pivoted at point O as shown below. At the end of each rod is a concentrated mass m. The concentrated mass or the right is connected via a spring to another point mass 2m. Derive the equations of motion us ng Lagrange's equations. В 2L/3 M- k k L/3 2m A m Ww-

3. With reference to forces acting on planar and curved surface, which of the following sentences are correct? A. For planar surfaces, the value of the centre of pressure is the same as the value of the centroid. B. For planar surfaces, the value of the centre of pressure depends upon the liquid acting on the surface. C. For curved surfaces, the expression of the vertical component of the force is equal to the weight of the water column above the curved surface. D. For curved surfaces, the general expression of the horizontal component of the force is the same as the expression for planar surfaces. 4. With reference to the Buoyancy, which of the following sentences are correct? A. The buoyancy force depends upon the total volume of the floating object. B. The buoyancy force depends upon the submerged volume of the floating object. C. In static conditions, for a solid sphere submerged in water, we can write FB = W, where Fg is the buoyancy force and W is the weight. D. The buoyancy…

The angular momentum of the body is equal to?

11. Marianna is pulling her daughter in a toboggan and is exerting a force of 60 N, acting at 46° to the ground. If Marianna pulls the child a distance of 300 m, how much work was done?