The three masses shown in (Figure 1) are connected by massless, rigid rods. Assume that mị = 240 g and m2 = 180 g. Part A You may want to review (Pages 297 - 298) What is the z-coordinate of the center of mass? Express your answer with the appropriate units. HA ? Value Units Submit Request Answer • Part B What is the y-coordinate of the center of mass? Express your answer with the appropriate units. ? y = Value Units Submit Request Answer Provide Feedback gure <) 1 of 1 > y m 10 cm 10 cm A 300 g m2
Rigid Body
A rigid body is an object which does not change its shape or undergo any significant deformation due to an external force or movement. Mathematically speaking, the distance between any two points inside the body doesn't change in any situation.
Rigid Body Dynamics
Rigid bodies are defined as inelastic shapes with negligible deformation, giving them an unchanging center of mass. It is also generally assumed that the mass of a rigid body is uniformly distributed. This property of rigid bodies comes in handy when we deal with concepts like momentum, angular momentum, force and torque. The study of these properties – viz., force, torque, momentum, and angular momentum – of a rigid body, is collectively known as rigid body dynamics (RBD).
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