Mass A is 40 kg and mass B is 10 kg. The angle that the inclined plane makes with the horizontal is 30 degrees. Using conservation of energy, find the velocities of bodies A and B when body A moves 3 meters down the inclined plane, ignoring friction and pulley masses, and when bodies A and B start to move from a standstill
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).
Mass A is 40 kg and mass B is 10 kg. The angle that the inclined plane makes with the horizontal is 30 degrees. Using conservation of energy, find the velocities of bodies A and B when body A moves 3 meters down the inclined plane, ignoring friction and pulley masses, and when bodies A and B start to move from a standstill.
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