Post a New Question


posted by .

Two people are holding a box. One person exerts a force of 140 pounds at an angle of 65.5 degrees with the horizontal. The other person exerts a force of 115 pounds at an angle of 58.3 degrees with the horizontal. Find the net weight of the box.

  • Math -

    use vectors

    140 pounds at 65.5 ---> (140cos65.5 , 140sin65.5)
    = (58.057 , 127.3946)

    115 pounds at 58.3° ---> (115cos58.3 , 115sin 58.3)
    = (60.429 , 96.9925)

    add them up for (118.486 , 224.387)

    maginitude = √( sum of the squares of the components)
    = appr 253.75

    check my button-pushing

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    A horizontal clothesline is tied between 2 poles, 12 meters apart. When a mass of 5 kilograms is tied to the middle of the clothesline, it sags a distance of 1 meters. What is the magnitude of the tension on the ends of the clothesline?
  2. math

    A woman exerts a horizontal force of 2 pounds on a box as she pushes it up a ramp that is 6 feet long and inclined at an angle of 30 degrees above the horizontal. how do you find the work on the box?
  3. Physics

    Two dogs pull horizontally on ropes attached to a post; the angle problem 1 between the ropes is 60.0 degrees. If dog A exerts a force of 270N and dog B exerts a force of 300N find the magnitude of the resultant force and the angle …
  4. Physics

    Two people pull a mule. One with 120 Newtons and an angle of 60 degrees. The other with 80 N and an angle of 105 degrees (Q2). What would be the force a third person would have to exert on the mule to make the net force equal to zero.
  5. PHYSICS-Net external Force

    1. Two tugboats pull a barge across the harbor. one boat exerts of force of 7.5 x 10^4 N North, while the second boat exerts a force of 9.5 x 10^4 N at 15.0 degrees north of west. Precisely, in what direction does the barge move?
  6. Physics

    Two people push on a crate. Person 1 pushes in the positive X direction with a force of 25N. The second person pushes in the negative X direction at an angle of 15 degrees below the horizontal with a magnitude of 18.5N the box moves …
  7. Trig Math

    I need help with this problem. I don't get how to do it or how they got that answer. A force of 50 pounds acts on an object at an angle of 45 degrees. A second force of 75 pounds acts on the object at an angle of -30 degrees. What …
  8. math

    two forces, one of 35 pounds and the other 62 pounds, act upon the same object. The angle between these forces is 25 degrees. Find the magnitude of the resultant force.
  9. math

    Freda Pulliam and Yank Hardy are on opposite sides of a canal, pulling a barge with tow ropes. Freda exerts a force of 50 pounds at 20 degrees to the canal, and Yank pulls at an angle of 15 degrees with just enough force so that the …
  10. applications of vectors

    Two people are carrying a box. One person exerts a force of 150 pounds at an angle of 62.4 degrees with the horizontal. The other person exerts a force of 114 pounds at an angle of 54.9 degrees. Find the weight of the box.

More Similar Questions

Post a New Question