Assume the three blocks (m₁ = 1.0 kg, m₂ = 2.0 kg, and m3 = 3.5 kg) portrayed in the figure below move on a frictionless surface and a force F = 48 N acts as shown on the 3.5 kg block. 7.4 mi 22 m₂ (a) Determine the acceleration given this system (in m/s² to the right). m/s² (to the right) 15 m3 (b) Determine the tension in the cord connecting the 3.5 kg and the 1.0 kg blocks (in N). N F (c) Determine the force exerted by the 1.0 kg block on the 2.0 kg block (in N). N m/s² N (d) What If? How would your answers to parts (a) and (b) of this problem change if the 2.0 kg block was now stacked on top of the 1.0 kg block? Assume that the 2.0 kg block sticks to and does not slide on the 1.0 kg block when the system is accelerated. (Enter the acceleration in m/s² to the right and the tension in N.) acceleration tension (to the right)
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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