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

see earlier

c. magnitude and direction