Suppose that there are two forces acting on a barge being towed along a river. O

Question

Suppose that there are two forces acting on a barge being towed along a river. One force is exerted due south by the river current and has a magnitude of 7 units (the exact nature of the force unit is unimportant). The other force is exerted by a tugboat and has a magnitude of 11 units towards the north and 3 units towards the east. What is the net force acting on the barge?

1) 11 units towards the north, 4 units towards the east
2) 18 units towards the north, 3 units towards the east
3) 4 units towards the north, 3 units towards the east
4) 3 units towards the north, 4 units towards the east

Please explain your answer

Explanation / Answer

Along Y axis: +7 - 4 = +4 = north Along X axis, only one force = +3 = East So 3) 4 units towards the north, 3 units towards the east

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