A turntable of radius

R=2m

rotates in the

x-y

plane as shown. It's frequency

\ u

is equal to 0.5 revolutions/second.\ At time

t=0

, The point

A

on the rim is located at an angle

\\\\theta =30\\\\deg

above the

x

-axis as shown.\ What is

v_(A)

, the instantaneous speed (relative to the ground) of point

A

?

A turntable of radius R=2m rotates in the xy plane as shown. It's frequency is equal to 0.5 revolutions/second. 1) At time t=0, The point A on the rim is located at an angle =30 above the x-axis as shown. What is vA, the instantaneous speed (relative to the ground) of point A