Respuesta :

Answer:

152.7 cm/s

Step-by-step explanation:

The radius of DVD, r = 6 cm

The angular speed of DVD, [tex]\omega=243\ rev/min=25.45\ rad/s[/tex]

We need to find the linear speed of the DVD.

The relation between linear speed and angular speed is given by :

[tex]v=r\omega\\\\v=0.06\times 25.45\\\\v=1.527\ m/s[/tex]

or

v = 152.7 cm/s

So, the linear speed of the DVD is 152.7 cm/s.