Tension Definition and 1000 Threads

Homework Statement Three pictures of equal weight (20 N) are hung by wires in three different orientations. In which orientation are the wires least likely to break? Orientation A: 15 degree with horizontal,Orientation B: 45 degree angle with horizontal, Orientation C: 60 angle with horizontal...

Hello everyone! I was doing a homework problem tonight, and a concept came up that I didn't quite understand. Don't worry, this is not a question asking for homework help -- I've already done the research and figured out how to solve for the solution. What I don't understand is why it's true...

Homework Statement A string of length L, which is clamped at both ends and has a tension T , is pulled aside a distance h at its center and released. a) What is the energy of the subsequent oscillations? b) How often will the shape shown in the figure reappear? (Assume that the tension remains...

Homework Statement Using the uploaded picture we have to have a force diagram. And we have to break angled forces into components and indicate which forces are equal with equality. All the masses are up to me (2, 3, 4, 5 kgs) Homework Equations Write an equation for the vertical forces Write...

Homework Statement Two identical, uniform beams weighing 260 N each are connected at one end by a friction-less hinge. A light horizontal crossbar attached at the midpoints of the beams maintains an angle of 53 degrees between the beams. The beams are suspended from the ceiling by vertical...

I need to figure out if my companies pulling equipment can handle a 795 drake conductor (about 1 lb/ft) double bundled (times 2). The pulling equipment has a safe working load of 4000 lbs. We are pulling it across 16 spans with a average span of 674 feet. the towers are 115' tall. Max sag...

How do you calculate total extension of composite bars carrying loads in tension?

Homework Statement Homework Equations Static equilibrium: Net force & net torque = 0 The Attempt at a Solution Am i doing this correctly for part a? [/B]

1. Calculate the force needed to move the wire in the figure (Figure 1) if it holds a soapy solution (surface tension is 0.025 N/m) and the wire is 16.0 cm long. Express your answer to two significant figures and include the appropriate units. 2. γ(surface tension) = F (force) / l (length)...

Homework Statement You swing a ball around a piece of string(vertically). M = 0.150kg r= 1.10m Calculate the Tention at the bottom of the arc assuming velocity is twice as fast. Homework Equations When I do the problem I'm not sure how to set up the NetForce = ma How do which force is...

Homework Statement A rope is connected between two fixed points that are separated horizontally from one another by 10 m. The point on the left at a height of 5 m [coordinates (0,5m)], and point on the right is at a height of 10 m [coordinates (10m,10m)]. A 100 lbs weight hangs from the rope...

I can't get it why tension is different in both sides of pulley due to friction?

Homework Statement In my workbook it gives an example and solution for the following question: The following diagram is of an atwood machine, which is a machine consisting of two masses: a massless string and a frictionless pulley. Due to the unequal masses on either end of the string, the...

This problem was given verbally during a class period, so I will set it up in my own words. A bullet (.012kg) is fired at a block (.800kg) hanging on a strong, massless string of length 1.6m. After the collision the bullet is embedded in the block. When the block is .8m above its original...

I am having a bit of difficulty with the concept of unequal tension in a rope. What are the conditions for unequal tension? I read that the tension is the same when there is no acceleration. Why is this the case? Can someone explain this concept to me? Thanks :)

Homework Statement given mass: 100g(the one hanging) Q1 = -30(mu)C Q2 = 70(mu)C Q3 = 50 (mu)C T=? Length of tube = 2m Length of rope = 1m Homework Equations Ft + Fg + Felect =0 F =k *q1*q3/d2The Attempt at a Solution Those were the equations I have done so far, so the answer is 46N & the...

Hello I was wondering what the equation is to calculate the tension in terms of coulombs law an example problem would be http://gyazo.com/1319551eb367990c75ee0a782e38a2c2

Homework Statement The system to the right has two identical masses. (one is hanging off the ledge of a table, one is on the table, they are connected by a rope.) tge coefficients of kinetic and static friction are .54 and .63 respectively. Find the acceleration and the tension in the rope...

Homework Statement A 5 kg 10 m beam is hanging from a wall. The angle between the cord and the wall is 30 degrees, and a 10kg mass is situated one meter away from the wall. How do I solve for cord tension and hinge force? Homework Equations Torque_cw=Torque_ccw? The Attempt at a Solution it...

Homework Statement Three equal masses are hung from a pulley(2 on one side, 1 on the other). Find the acceleration of the system and the tension between: a) the 2 sides of the pulley and b) between the 2 masses on the same side Homework EquationsThe Attempt at a Solution Got a= g/3, for a) T=...

Homework Statement A string is attached to a 10 kg block that lies on a horizontal surface. If the string is pulled horizontally with a force of 50 N, friction acting against it is 30 N. What is the tension in the string? Homework Equations F = ma The Attempt at a Solution Would it be 50 N...

1. A hemispherical sign in 1m diameter and of mass equal to 50kg is supported by two strings. Calculate the tension in the strings. 2. W = mg 3. I tried to solve it but the only thing I was able to do is knowing the distance between the two strings which is 0.75m, I'm new to physics.

Homework Statement A boat pulls two barges down the river. The barge connected to the boat (barge A) has an inertia of 2x10^5 kg, and the other barge (barge B) has an inertia of 3x10^5 kg. the resistive force between barge A and the water is 7x10^3 N, and the resistive fore of barge B to the...

Homework Statement A rope of negligible mass is stretched horizontally between two supports. When an object of weight 3160N is hung at the centre of the rope, the rope is observed to sag by 35.0cm. What is the tension in the rope? Homework EquationsThe Attempt at a Solution [/B] Sum of...

A boat pulls two barges down the river. The barge connected to the boat (barge A) has an inertia of 2x10^5 kg, and the other barge (barge B) has an inertia of 3x10^5 kg. the resistive force between barge A and the water is 7x10^3 N, and the resistive fore of barge B to the water is 9x10^3 N. The...

Homework Statement Mass m1 = 5.00kg is tied to the wall with a horizontal piece of string and is at rest onto of mass m2 = 10.00kg. A horizontal force F= 50.0N is applied to m2. The static coefficient of friction between all surfaces is μs = .350 and the kinetic coefficient of friction is μk =...

: Homework9-7 http://physci.kennesaw.edu/images/hm12-1.gif 1. A uniform beam of mass m is supported in a horizontal position by a pin and cable as shown in the Figure. Given. m = 20.0 kg ; M1 = 54.0 kg ; M2 = 37.0 kg ; L1 = 2.90 m ; L2 = 5.40 m ; and θ = 43.0°. a) How many forces are acting on...

Above is a picture of the problem. How do you determine which direction the Tension force and friction force is headed? Because the sled goes to the right, the penguin should goes right as well; however, the tension rope is pulling it left, so should Tension go to the left? If the motion of the...

Homework Statement Alternative link: http://oi62.tinypic.com/2iw28oh.jpg Homework Equations F = ma Ffriction = μN The Attempt at a Solution [/B]

An m = 12.4kg mass is attached to a cord that is wrapped around a wheel of radius r = 10.0cm (see the figure below). The acceleration of the mass down the frictionless incline is measured to be a = 2.10m/s^2. a) Assuming the axle of the wheel to be frictionless, and the angle to be θ = 36.2deg...

I have went through the thread and looked at the explanations for surface tension, and I have also went online to about 10 different websites, but I have not yet been able to figure out this concept. I think it is just my inability to understand and I need perhaps a different way of explaining...

Question Summarized: The box in the middle is remains motionless; how much mass was placed in box 3? box 1: 35kg middle box: 95 kg box 3: ? kg Attempt at the problem:

Homework Statement In figure, block 1 of mass m1 = 2.0 kg and block 2 of mass m2 = 6.0 kg are connected by a massless string over a massless and frictionless pulley and are initially held in place. Block 2 is on a rough surface, with coefficient of kinetic friction of 0.1 and tilted at θ = 30o...

Homework Statement Block 1, of mass m_1 =2.6kg and block 2 of mass m_2=1.4kg are connected by a massless string. Block 2 then experiences a force F=18N acting in the postivive x direction and at an angle of \theta = 38° . The coefficiant of kinetic friction between the floor and both of the...

1. A wooden block of mass m kg is at rest on a table, 1.6 metres from the edge. The block is pulled directly towards the edge by a horizontal string. The tension in the string has magnitude 0.2 mN. Calculate the time taken for the block to reach the edge of the table.2. F = ma, S = D/T3. I have...

Homework Statement [/B] A solid cylinder of mass m and radius r lies flat on frictionless horizontal table, with a massless string running halfway around it, as shown in Fig. 8.50. A mass also of mass m is attached to one end of the string, and you pull on the other end with a force T. The...

In the structure shown, a cable is attached to the 50 kN weight and to the beam A-D at point B. If the horizontal uniform beam weighs 8 kN/m, determine the following: (a) The horizontal and vertical component of the force that the pin at D exerts on the beam A-D. (b) The force in the cable. ...

Homework Statement A m1 = 7.3 kg block and a m2 = 10.2 kg block, connected by a rope that passes over a frictionless peg, slide on frictionless incline. (a) Find the acceleration of the blocks and the tension in the rope. (b) The two blocks are replaced by two others of masses m1 and m2...

I've been learning the Israel formalism (see original article here) for thin shells. I think I understand the formalism well and how to do the matching given two manifolds (that are solutions of the Einstein's field equations - EFE). I've been studying several articles that use the matching...

Homework Statement [/B] 4-31 Homework Equations Tension (Ft) = Force of gravity (Fg) = m × g. The Attempt at a Solution [/B] only manage to reach 60kg x 9.8 = 588N

Homework Statement A huge Halloween decoration of mass 100kg is suspended by 3 cables. Each cable is exactly 25m long and is attached to each of the three building equidistant from each other. Each cable makes an angle of 30 degrees with the side of the building to which it is attached. What is...

A water skier of mass m is pulled at a constant velocity v by a boat of mass M. Tension in the rope held horizontally by the skier is T. a) Find the total resistive force by the water and air on the skier. b) How much upward force does the water exert on the skier?What equation would I use to...

Homework Statement A block on a ramp is held by a tension force parallel to the horizontal (not the ramp). If originally the tension force was parallel to the ramp, is the tension force when it was parallel greater, equal, or less than when it is horizontal? Homework Equations Trigonometric...

Homework Statement Two blocks are connected by a string as in the figure. (below) What is the upper block's acceleration if the coefficient of kinetic friction between the block and the table is 0.18? Express your answer to two significant figures and include the appropriate units. Homework...

Homework Statement I have this homework question and was able to set up the free body diagrams for the two blocks but got stuck forming the equations in part a. Please help if you can and give explanations - I want to understand the concept for my test coming up. A block with mass M is pushed...

So I've been thinking about something for some time now, suppose you have an object (m1) on a frictionless ramp. There is an ideal pulley where the object is attached to one another and hangs down off the ramp (m2). And suppose that someone is holding the first block in place (m1) . If the...

Homework Statement A mass m_1 = 4.1 kg rests on a frictionless table and connected by a massless pulley to another mass m_2 = 3 kg, which hangs freely from the string. When released, the hanging mass falls a distance d=0.83m. How much work is done by tension on m_1? Homework Equations v^2 =...

For problem 2.53, they are asking us for the tension in cable ACB and the answer is 1213N. Now to my understanding to find tension ACB, I need to find tension CB and CA then find the resultant of them, However I know that is wrong because when I calculated tension CB I got the answer of 1213N...

I don't manage to get this task right. See the pictures. First i take point D and draw a free body diagram. Then i use the equation for equilibrium. I can then calculate the tension in the wires that goes from D to B and from D to C. I then take point B and draw a free body diagram, but all the...

Homework Statement The problem: Two blocks made of different materials connected together by a thin cord, slide down a plane ramp inclined at an angle θ to the horizontal as shown in the figure (block B is above block A). The masses of the blocks are mA and mB and the coefficients of...