Un hamster esta sentado sobre un tocadisco cuya rapidez angular es constante si el hamster se mueve a un punto localizado al doble de la distancia del centro entonces su rapidez

a) sera la mitad
b) se duplica
c) se mantendra igual

b) se duplica

Explanation:

The disk is moving with constant angular velocity, let's call it .

The linear velocity of a point on the disk is given by

where r is the distance of the point from the axis of rotation.

In this problem, the object is moved at a distance twice as far as the initial point, so

Therefore, the new linear velocity is

So, the velocity has doubled, and the correct answer is

b) se duplica

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.

it is easily magnetized.