A flywheel gains a speed of 540 r.p.m. in 6 sec. its angular acceleration will be

Q: A flywheel gains a speed of 540 r.p.m. in 6 sec. its angular acceleration will be

(a) 3 πrad/sec2

(b) 9 πrad/sec2

(c) 18 πrad/sec2

(d) 54 πrad/sec2

Ans: (a)