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A small ball starts moving from A over a fixed track as shown in the figure. Surface AB has friction. From A to B the ball rolls without slipping. Surface BC is frictionless. K A , K B and K C are kinetic energies of the ball at A, B and C, respectively. Then [figure] a) h A >h C ; K B > K C b) h A >h C ; K C > K A c) h A = h C ; K B = K C d) h A C ; K B > K C

 A small ball starts moving from A over a fixed track as shown in the figure. Surface AB has friction. From A to B the ball rolls without slipping. Surface BC is frictionless. KA, KB and KC are kinetic energies of the ball at A, B and C, respectively. Then
[figure]
a) hA>hC ; KB> KC
b) hA>hC ; KC> KA
c) hA = hC ; KB = KC
d) hAC ; KB> KC

Grade:12th pass

1 Answers

Arun Kumar IIT Delhi
askIITians Faculty 256 Points
8 years ago
Hi


so A,B,D

Thanks & Regards, Arun Kumar, Btech,IIT Delhi, Askiitians Faculty

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