A merry-go-round (carousel) starts from rest and accelerates with a constant angular acceleration of 0.02 revolution per secondper second. A woman sitting on a chair 6 meters from the axis of revolution holds a 2 kg ball. Calculate themagnitude and direction ofthe force she must exertto hold the ball 5 seconds after the merry-go-roundbegins to rotate. Specify the direction with respect to theradius of the chair on which she is sitting.
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).
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 4 images