Multiple Choice
A concrete block is pulled 7.0 m across a frictionless surface by means of a rope. The tension in the rope is 40 N; and the net work done on the block is 247 J. What angle does the rope make with the horizontal? 
A) 28°
B) 41°
C) 47°
D) 62°
E) 88°
Correct Answer:
Verified
Correct Answer:
Verified
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