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Home > PC3 > Chapter 8 > Lesson 8.3.3 > Problem 8-121


Rectangle labeled 100 pounds, 2 rays start at center of top edge, left, labeled 30 pounds, goes up & left, & makes 30 degree angle with top of rectangle, right, labeled 75 pounds, goes up & right, & makes 50 degree angle with top of rectangle.Two forces are being used to lift a pound box as shown in the diagram below. Can they lift the box? Use vector operations to justify your answer.  

There are two forces pulling up on the box, but there is also the force of the box pulling straight down.
Compute the resultant force. Is it in a positive or negative vertical direction?