The rope is used to tow the refrigerator. Isit best to pull slightly up on the rope as sho...

The rope is used to tow the refrigerator. Isit best to pull slightly up on the rope as shown, null horizontally, or pull somewhat downwards? Also, is it best to attach the rope at a high position as shown, or at a lower position? Do an equilibrium analysis to explain your answer.

(© Russell C. Hibbeler)