A heavy bucket with an empty mass of 4 Kg is filled with 5 Kg of liquid. The bucket is pull up from the floor all the way up a building 10 m tall. During the pull, the bucket leaks 1 Kg of liquid per every 1 m of vertical pull. (a) In the axis below, plot the mass of the bucket plus the liquid as a function of y [y is the distance pulled in m] [Hint: does the liquid empties before or after the bucket reaches the top?] mass (Kg) 10 8. 6 51 4 3 2 1 3 4 6. 7 8. 9. 10 y (m (b) How much work (in international SI units) is done to pull the bucket and the leaking liquid to the top of the building [Hints: F= m x g and use g 10 m/s²]. 0-6:10 PDT re/distribute/post/upload 26/Tob/200
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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