bowiing ball of mass M and radius R is at rest on the floor of a stationary train car. mere is sufficient friction between the ball and the floor such that the ball will roll without Silipping. If the train begins to accelerate forward with acceleration a relative to the earth, determine the linear acceleration (magnitude and direction) of the bowling ball as seen from a. A passenger on the train b. A person at rest relative to the earth.
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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