1.

If rA=3rB and the two wheels are couples with a belt ratios of the angular velocities is

Answer»

As  wheels are couple the radius will be squared 

F1=F2 

mrA2ωA2=mrB2ωB2 as the masses are same

 rA2ωA2=rB2ω2 

3r2BωA2=rB2ω2 

9ωA2=ωB2 

ωωB=1:3



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