High above the town of Whoville there lived a Grinch and his dog Max. The Grinch being antisocial has never gone to school so needs your help with some physics concepts. a) Start by stating Newton's Three Laws of Motion
b) While watching the Who's skate on Who lake, the Grinch notices that when Sue Who is spinning as she pulls in her arms she spins faster. Explain why this happens to the Grinch.
c) The Grinch notices that as time progresses his cave gets messier. Explain why this occurs.

a) Newton proposed three laws to explain the motion of things.

b) bodies are in motion the kinetic moment   is preserved,

c) entropy

Explanation:

In this exercise you are asked to explain various concepts of physics

a) Newton proposed three laws to explain the motion of things.

* The first law or inertia states that a body in an inertial system (without acceleration) remains stationary or with constant velocity if the sum of the forces is zero

* The second law states that the force (interaction) is proportional to the masses and the acceleration of the bodies

        F = m a

* The third law or action and reaction, says that the forces always go in pairs, that is, if a body interacts with a body 2, and body 2 will also interact with body 1, with the same force but with the opposite direction, each force is applied to a body

b) when bodies are in motion the kinetic moment

          L = I w

it is preserved, if it does not interact with the outside.

The quantity I called the moment of inertia is I = m r²

In this case

in the initial instant with outstretched arms

     L = I₀ w₀

in the final moment. By shrinking your arms

    = I_{f} w_{f}

as the body does not interact with another

     L₀ = L_{f}

     I₀ w₀ = I_{f} w_{f}

     w_{f} =  w₀

we substitute

      w_{f} = \frac{r_{o} }{r_{f} }^2 w₀

as the distance of the arms extended is greater than when they are retracted (r₀>  ), the final angle speed increases

c) This is an application of the concept of entropy that establishes that disorder is the most probable state of a system, which is why the cave increases its disorder or entropy over time since by not fixing things, they are increasingly dispersed