Question 8 Based on the kinematic system below How many DOFS it has? y (2.4) Kinematic skeleton A B

QUESTION 1 Consider a 2 DOF system shown below. X1 k₁ m1 F₁ k₂ X2 k3 m₂ F2 The modeshape can be written as (1))] What is x for the second modeshape? Use scientific notation with 3 significant digits and omit units. (eg. -0.123) Let m1 = 2, m2 = 2, k1 = 9, k2 = 8, and k3 = 8.

Learning Goal: To understand the concept of moment of a force and how to calculate it using a vector formulation. A man wishes to spin a merry-go-round in the x-y plane centered at the origin (0.000, 0.000, 0.000). (Figure 1) Because he must pull upward and cannot stand on the merry-go-round, he must apply a force in the direction of the unit vector u = (-1/3)i+(2/3)j+(2/3) k. He pulls with a force F = 47.0 lb from point A[(3.00, 4.00, 0.000) ft]. Part A What are the x, y, and z components of the resulting moment acting on the merry-go-round about the origin? Express your answers numerically in pound-feet to three significant figures separated by commas. ► View Available Hint(s) VE ΑΣΦ Mz, My, M₂ = Submit Part B Complete previous part(s) Provide Feedback vec ? lb-ft

4.  The unit for power in rotational kinematics is different from what it is in linear kinematics        True        False