physics

posted by .

A 14.5 kg ring has 3 ropes attached to it. One rope is being pulled due North with a force of 340 N. Another rope is being pulled 68 degrees South of West with a force of 450 N. How hard and in what direction must the third rope be pulled in order to cause the ring to move 15 degrees North of East? How far will the ring have moved after 28 s?

i'm not even sure where to start with this one! Can I please get help?

  • physics -

    This is fairly easy on a polar graph. Draw vectors1 and 2, and a line representing the direction of movement.

    graphically add 1 and 2, getting a resultant r.

    Now r added to some third vector must equal someting along the line for the movement at 15N of E. You will need a polar graph, straight edge, probably a compass. A parallel motion protractor would make it easy, but they are not so available today.
    Have fun.

  • physics -

    I don't have a polar graph, never even heard of it. Is there any way to do this with equations?

  • physics -

    Polar graph is pretty common.

    http://mason.gmu.edu/~mmankus/Handson/polar.htm

    The equations are messy.

  • physics -

    k I'll try it, thanks.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    Four ropes are tied to a stake, and each is pulled toward a compass direction, N, S, E, or W. A force of 10 lb is applied to the rope pulled toward the east. Forces of 20, 30, and 40 lb are applied toward the south, west, and north, …
  2. physics

    two ropes are attached to a 200. kg sled. A 490. newton dog attached to on eo the ropes applies a force of 300. N b north of the rope. A 35.0 kg dog attached to the second rope applies a force of 125 N b 36.9 degrees south of west …
  3. physics

    Four ropes are tied to a stake, and each is pulled toward a compass direction, N, S, E, or W. A force of 13 N is applied to the rope pulled toward the east. Forces of 23, 25, and 38 N are applied toward the south, west, and north, …
  4. Physic

    A 23.0 kg block is sitting on the ground. Two ropes are attached to the top of the block. Rope A is pulled upward with a force of 20.0 N and rope B is pulled upwards with a force of 5.0 N. What is the normal force on the block?
  5. Physics

    The scale in Fig. P12 is being pulled on via three ropes. (The force on each rope is F = 180 N.) What net force does the scale read?
  6. physics

    two ropes are tied to a large boulder. one rope is pulled with a force of 400N due east. The other rope is pulled with a force of 300N due south. draw a vector diagram showing the forces
  7. Physics

    Two ropes attached to a young tree are pulled by two landscapers. Rope 1 is pulled with 267 N of force at an angle of 23 degrees north of east and Rope 2 is pulled with 377 N of force due west.
  8. Physics

    Two ropes attached to a young tree are pulled by two landscapers. Rope 1 is pulled with 267 N of force at an angle of 23 degrees north of east and Rope 2 is pulled with 377 N of force due west. a) Determine the magnitude and direction …
  9. Physics

    Two ropes attached to a young tree are pulled by two landscapers. Rope 1 is pulled with 267 N of force at an angle of 23 degrees north of east and Rope 2 is pulled with 377 N of force due west. a) Determine the magnitude and direction …
  10. Calculus

    A boat is pulled in to a dock by a rope with one end attached to the front of the boat and the other end passing through a ring attached to the dock at a point 6 ft higher than the front of the boat. The rope is being pulled through …

More Similar Questions