They are all apart of the same situation, please try to answer all 3 if possible

Question

They are all apart of the same situation, please try to answer all 3 if possible, thanks!

The following Proklems 9. A uniform dick of radius 0.2 m fee to rotate about an axis through its eenter and perpendicular to the disk plane. At starts from rest with a constant angular a point on what magnitude orde eenmpetal acceleratiee of the edge of the disk? a, 320 ms? 20 About how many revolutions has the disk made after 10 seconds? 21. If the disk makes N tums in the first 10 seconds, how many does it make in the first 5 seconds? a, N2

Explanation / Answer

a) a= w^2 r

wf= 8 ( 10 ) = 80 rad/sec

a= 80^2(0.2) = 1280 m/s^2 ( option e)

b) wf^2 = 2 ( theta) (alpha)

80^2 = 2( theta) ( 8)

theta ( angle covered)= 400 radians=64 revolutions apprx

c)N/4

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