physics

A bag of cement of weight 300 N hangs from three wires. Two of the wires make angles θ1 = 50.0° and θ2 = 28.0° with the horizontal. Assuming the system is in equilibrium, find the tensions in the wires.

  1. 👍
  2. 👎
  3. 👁
  1. Draw a diagram to represent the known forces acting on the mass (two tensions pointing upwards along the wires, and the weight pointing vertically downwards).

    You would find the resultant of the three forces, F1, F2 and W, graphically or by resolution into x- and y-components.

    The magnitude and direction of the force opposite in direction to the resultant represents the third force required.

    As it is, the question does not mention whether the two strings are on the same side or opposite sides of the vertical.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A street lamp weighs 150 N. It is supported by two wires that form an angle of 100° with each other. The tensions in the wires are equal. (a) What is the tension in each wire supporting the street lamp? (b) If the angle between

  2. Math

    The lengths of three wires were 30m, 36 m and 84m. Pieces of wire of equal length were cut from the three wires. Calculate the least number of pieces obtained.

  3. Physics

    A street lamp weighs 150 N. It is supported by two wires that form an angle of 140° with each other. The tensions in the wires are equal. (a) What is the tension in each wire? (b) If the angle between the wires is reduced to

  4. Physics

    Two identical perfectly smooth 71.2 N bowling balls 21.7 cm in diameter are hung together from the same hook by two massless wires. The bowling ball are just in contact with one another, and the angle between the two wires is 50

  1. Math

    A construction crew wants to hoist a heavy beam so that it is standing up straight. They tie a rope to the beam, secure the base, and pull the rope through a pulley to raise one end of the beam from the ground. When the beam makes

  2. trigonometry

    An electric post is anchored to the ground by two guy wires attached on opposite sides. The guy wires make angles of 35• and 48• with the horizpntal that are 75 m apart. what is the length of each wire?

  3. physics

    A generating station is producing 1.2 x 106 W of power that is to be sent to a small town located 4.2 km away. Each of the two wires that comprise the transmission line has a resistance per length of 5.0 x 10-2/km. (a) Find the

  4. chs

    Two wires support an electricity pole. if the wires make angles of 58°and 67° with the ground and |AB|=21m, calculate the lengths of the wires

  1. physics

    A picture hangs motionless on a wall as shown in the Figure. If the picture has a mass of 5.0 kg, what are the tension forces in the wires?

  2. Maths

    Two wires support an electricity pole. if the wires make angles of 58°and 67° with the ground and |AB|=21m, calculate the lengths of the wires

  3. trig

    A pole is braced by two wires that extended from the top of the pole to the ground. The lengths of the wires are 16 feet and 18 feet and the measure of the angle between the wires is 110 degrees. Find, to the nearest foot, the

  4. Maths

    A communications tower has many guy wires supporting it. Two of these guy wires are 10.0 m and 8.0 long. They are attached at the same point on the ground. The longer wire has an angle of inclination of 60 degrees. a) How far from

You can view more similar questions or ask a new question.