44. A disc and a ring of same mass are rolling and if their kinetic energies are equal, then the ratio of their velocities will be
(a) √4 : √3
(b)√3: √4
(c) √3:√2
(d) √2:√3
Ans. a
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a