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(a) What is the tangential acceleration of a point on the rim of the flywheel during this spin-up process?

m/s2

(b) What is the radial acceleration of this point when the flywheel is spinning at full speed?

m/s2

(c) Through what distance does a point on the rim move during the spin-up?

m

i've been trying to answer these for hours and still have no clue. Help is appreciated.