1. Eight people are involved in a tug-of-war. The blue team members pull with forces of 220...

Question:

1. Eight people are involved in a tug-of-war. The blue team members pull with forces of 220 N, 340 N, 180 N, and 560 N. Three members of the red team pull with forces of 250 N, 160 N, and 420 N. With what force must the fourth person pull to maintain equilibrium?
2. A bridge has a weight limit of 14.0 tons. What is the maximum weight an 8.0-ton truck can carry across and still maintain equilibrium?
3. The x-components of three vectors are Fx, 375 units, and 150 units. If their sum is equal to zero, what is Fx?