Two identical uniform discs roll without slipping on two different surfaces AB and CD (see figure) starting at A and C with linear speeds v1 and v2, respectively, and always remain in contact with the surfaces. If they reach B and D with the same linear speed and v1=3 m/s, then v2 in m/s is ___. (g=10 m/s2)

Two identical uniform discs roll without slipping on two different sur

1.	Two identical uniform discs roll without slipping on two different surfaces AB and CD (see figure) starting at A and C with linear speeds v1 and v2, respectively, and always remain in contact with the surfaces. If they reach B and D with the same linear speed and v1=3 m/s, then v2 in m/s is ___. (g=10 m/s2)
Answer» Two identical uniform discs roll without slipping on two different surfaces AB and CD (see figure) starting at A and C with linear speeds $v_{1} a n d v_{2},$ respectively, and always remain in contact with the surfaces. If they reach B and D with the same linear speed and $v_{1} = 3$ m/s, then $v_{2}$ in m/s is ___. $(g = 10 m / s^{2})$

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