Answer:
1732.05 J
Explanation:
The man is doing 100N of force on the rope at an angle of 30° where he is pulling a box 20 meters across the floor.
Work is equal to the force exerted in the direction of motion multiplied by the distance.
Mathematically, Work=F×D×CosineФ
where F=force in newtons
D=displacement in meters
Ф=the angle between the force vector and the direction of motion
Substitute values in formula
Work=100×20×cosine 30°
Work=100×20×0.86602540378
Work=1732.05 J