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Grade: 12th pass 
        
 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
5 years ago

Answers : (1)

Arun Kumar
IIT Delhi
askIITians Faculty
256 Points 
							Hi


so A,B,D

Thanks & Regards, Arun Kumar, Btech,IIT Delhi, Askiitians Faculty
5 years ago
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