Rotating turntables?

Question

Six blocks are sitting at rest on rotating turntables. All of the turntables have the same rotation rate (i.e., the same frequency). The masses of the blocks and how far out from the center they sit varies. The specific values are:

A: R = 2 cm; m = 6 kg

B: R = 3 cm; m = 4 kg

C: R = 5 cm; m = 1 kg

D: R = 2 cm; m = 5 kg

E: R = 3 cm; m = 2 kg

F: R = 5 cm; m = 3 kg

arrange the blocks according to the horizontal forces holding it.1-6, 1-highest

Answer 1

F = ma = mRω^2

since the rotation rate is the same, ω = constant for all blocks

so...

A: 2

B: 2

C: 5

D: 3

E: 4

F: 1