i think this is the incomplete page that you are showing but the answer is
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Mechanical advantage = ideal mechanical advantage x efficiency = 3.5 x 0.6 = 2.1
The mechanical advantage of the inclined plane is 2.1
        
             
        
        
        
Answer:
w = 1.976 rpm
Explanation:
For simulate the gravity we will use the centripetal aceleration  , so:
, so:

where w is the angular aceleration and r the radius.
We know by the question that:
r = 60.5m
 = 2.6m/s2
 = 2.6m/s2
So, Replacing the data, and solving for w, we get:

W = 0.207 rad/s
Finally we change the angular velocity from rad/s to rpm as:
W = 0.207 rad/s = 0.207*60/(2 )= 1.976 rpm
)= 1.976 rpm
 
        
             
        
        
        
A. Larger. It is larger Bc they r all larger than the other