2007
Physics
67e856d33cf20db308447ec1
A box of mass 40kg is being dragged along by the rope inclined at 60o to the horizontal. The frictional force between the box and the floor is 100N and the tension on the rope is 300N. How much work is done in dragging the box through a distance of 4m?
A.
680J
B.
200J
C.
100J
D.
400J
Correct Answer: 100J
Explanation
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