a 5 1/4 in. floopy disk for a personal computer rotates with a constant angular speed of 3.00* 10^2 rev/min about an axis perpendicular to the disk at its center . find the angular speed in rad/s. find the tangential speed in ft/s^2 of the point that is 2.00 in. from the center of the disk. and what is the magnitude of the centripetal acceleration in in ft/s^2 of the point mentioned.

Question

a 5 1/4 in. floopy disk for a personal computer rotates with a constant angular speed of 3.00* 10^2 rev/min about an axis perpendicular to the disk at its center .    find the angular speed in rad/s. find the tangential speed  in ft/s^2 of the point that is 2.00 in. from the center of the disk. and what is the magnitude of the centripetal acceleration in in ft/s^2 of the point mentioned.

anonymous · Answer

angular frequency/angular velocity is $$d \theta/dt =2*pi*f $$ where f is the frequency. You'll have to convert minutes into seconds for this part.
the tangential speed is:
$$\omega*r=v$$ where omega is the angular frequency you just calculated. Once again youll have to convert units, in this case inches into feet.

anonymous · Answer

so your angular frequency is approximately 31.4 rad/s
and your velocity is approximately 13.74 meters/s

anonymous · Answer

thanks