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35.
Identical 5.0 kg blocks are released from rest on the ramps to the right.  Which will experience the greatest acceleration?
      
Sum F = ma

Fparallel = mg Sin theta           The larger the angle the larger Fparallel

Ffriction = Coefficient of Friction x Fnormal

Fnormal  = mg Cos theta       The larger the angle the smaller Fnormal

The greater the angle the larger Fparallel and the smaller Fnormal

Ftotal = Fparallel  - Ffriction 

D has the greatest angle and is the Correct Answer.