My first problem is change 85 radians per second to revolutions per minute I know you have to use dimensional analysis.
So would It be
85 rad I am not sure how to set up the rest
My second problem is this find the linear velocity in millimeters per second for each hand which is 30 millimeters long
I know the formula is v=r(angular velocity)
I know r= 30 but I am unsure how to find angular velocity
Can anyone help me with these two problems?