A sphere of mass 5 kg and a block of mass m, =3 kg are connected by a light cord that passes over a pulley as shown in Figure. The radius of the pulley is R=20 cm, and the mass of the thin rim is 1 kg. The spokes of the pulley have negligible mass. The block slides on a horizontal surface. The kinetic coefficient of friction between block 8. and horizontal surface is 0.1 Find for the linear acceleration of the two objects, R
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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