An open box slides with constant speed across the frictionlesssurface of a frozen lake. If water from a rain shower falls verticallydownward into it, does the box: (a) speed up, (b) slowdown, or (c) continue to move with constant speed?
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).
An open box slides with constant speed across the frictionless
surface of a frozen lake. If water from a rain shower falls vertically
downward into it, does the box: (a) speed up, (b) slow
down, or (c) continue to move with constant speed?
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 3 images
