Tension Definition and 1000 Threads

Homework Statement How do you find tension and friction on an inclined plane given acceleration, two masses and an angle? It's a pulley system, I suppose. Here's a diagram I drew: http://postimg.org/image/m9v9i2qy5/ Homework Equations Fg = ma The Attempt at a Solution I was thinking that I...

Homework Statement A particle of mass m is whirled on the end of a string of length R. The motion is in vertical plane in Earth's gravitational field . The instantaneous speed is v when the string makes angle Ө with the horizontal. Find the tension T in the string and the tangential...

When a particle is attached to a rope and rotated, then tension acts perpendicular to displacement and work done is zero. But I am thinking about this case (top view): Here, the rope is attached to a vertical cylinder and the particle is given a velocity perpendicular to the rope. The length...

I drew a FBD about point A and came up with the two equations: ∑Fx=0 20sinθ - T-ab(cos70)=0 ΣFy =0 -20cosθ + T-ab(sin70) -20=0 My answer is not coming out so I either messed up on the FBD or the equations, some help would be appreciated. I'm on 3-10 by the way.

Homework Statement An empty elevator of mass 2.7×103 kg is going down by a cable at an acceleration of 1.2 m/s2. What is the tension in the rope pulling the lift? Homework Equations ## T=m(g-a) ## The Attempt at a Solution ## T=m(g-a) \\ \Rightarrow T = 2.7 *10^3 (9.8-1.2) \\ \Rightarrow T=...

Homework Statement Use the principle of moments and take moments about A to show that the weight of the object O is 19 N.Homework Equations Moment=Force x perpendicular distance The Attempt at a Solution Vertical component of tension= TsinA...

Homework Statement A match of length l=4cm is floating on the surface of the water from a glass. ( the water is at room temperature) If from on one side of the match we pour a few drops of soap, the match starts moving. In which direction is the match mooving and what force is acting upon it? (...

Hi All, I'm confused with a particular question and I'm not entirely sure how the answer was derived. A one-meter board with uniform density hangs in static equilibrium from a rope with tension T--The rope is connected .2m from the left end. A weight of 3kg hangs from the left end of the...

A heavy board is fixed to another flat surface along its entire upper edge and not moving. How can I find the tension force that is acting on the board? Is it the same as if the board would be fixed to a string in the middle of the upper edge and hung and then the tension would be T=mg?

Homework Statement A homogeneous flexible rope rests on a wedge whose sides make angles α and β with horizontal. The centre of rope lies on C. With what acceleration should the wedge be moved for the rope to stay stationary with respect to wedge? (all surfaces are smooth). Homework Equations...

Suppose a pulley is lifting a mass through rope so the rope is applying force to mass in form of Tension. Is the rope also applying that force to pulley i.e Is pulley being acted upon by Tension??

1. Homework Statement The tension in the cable is 800LBs. Find the depth of water that produces this tension. The gate is hinged at B; the cable is attached at A. (Figure 1)Homework EquationsThe Attempt at a Solution OK, so this is just 2 opposing lever arms: the tension in the cable is...

Homework Statement A plate is fixed to the ceiling by two wires and to the wall by a single wire. The wall wire is cut. Calculate the tension in the two remaining wires. mass = 800 kg g = 10m/s² Dimensions in sketch Homework EquationsThe Attempt at a Solution Equations: Ra*cos30 + Rb*cos30 =...

Homework Statement Two masses m and M (where M = 2m) are attached with strings. One mass m is suspended from a single verticle string held by two strings each at 45 degrees to the horizontal. The suspending string to the left at 45 degrees is attached to a fixed point. The string on the right...

Hi, I'm new to PF so this is my first post. I have a real case scenario as my first thread in which I have a gravitational tensioning system that provides tension to a cable conveyor. The tensioning system includes a series of pulleys in a particular reeving arrangement that is fixed on one...

Homework Statement The figure shows two masses hanging from a steel wire. The mass of the wire is 60.5 g . A wave pulse travels along the wire from point 1 to point 2 in 24.0 ms . https://session.masteringphysics.com/problemAsset/1383975/6/knight_Figure_20_80.jpg //What is mass m? Homework...

Homework Statement Homework Equations principle of moments The Attempt at a Solution Okay so when resolving the forces horizontally and vertically, I get RA= T cosθ for horizontal component and RB= W + T sinθ for vertical component. To get my T, I chose to take moments about B, though I'm...

Homework Statement Question 33. Just T1 and T2 are okay, I know T3 Homework Equations F=ma The Attempt at a Solution 325/2 = 162.5N For T1: (162.5)(sin 60) For T2: (162.5)(sin 40) Thanks!

Why does tension across a rod rotating horizontally vary when it is rotating about one end?

Homework Statement A 30 kg neon sign is suspended by two cables, as shown. Three neighbourhood cats (5.0 kg each) find the sign a comfortable place. Calculate the tension in each cable when the cats are in the positions shown. Ft1 = tension in left cable Ft2 = tension in right cable...

I get that tension in a mass-less string arises because of electrostatic forces which arise because atoms of the string are pulled apart. I also understand that it is equal and opposite in direction at all points because otherwise the string would accelerate infinitely. But what about the last...

Homework Statement the maximum force is F=F1 +F2 + T as shown in the textbook... I can't understand why the tension of spring is also = F1...Is it because of the writer assume the spring is directly attached to the part P (upper part of the block) ?? Homework EquationsThe Attempt at a Solution

Solved Thank You : ) 1. Homework Statement A rigid, uniform, horizontal bar of mass m1 and length L is supported by two identical massless strings. (Figure 1) Both strings are vertical. String A is attached at a distance d < L/2 from the left end of the bar and is connected to the ceiling...

Homework Statement Two blocks of weight 50N and 200N are connected by a cord rest on two inclined planes .determine the maximum tension in the cord when limiting friction condition develop in both blocks R1=Reaction of weight 50N R2=reaction of weight 200 N[/B]Homework Equations for block of...

Homework Statement A string is connected to a box A mass M at its left end and a box B mass 2M at its right end. Boxes A and B start pulling in opposite directions at the same time with forces which are time dependent and described by functions F(t)=Ct for box A and F(t)=Dt for box B. Values of...

Hi guys, I came across this question and I was wondering if someone could explain how we get: TLsinO - mg(1/2LcosO) = 0 Your help would be much appreciated.

Homework Statement A 0.020-kg mass is attached to a 1.2-m string and moves in a horizontal circle with a constant speed of 1.50 m/s, as shown in the figure. What is the measure of angle θ? What is given: m = 0.020kg v = 1.50 m/s L = 1.2 m Homework Equations Lengths L = 1.2m Lsinθ = r...

solved thank you : ) 1. Homework Statement A bucket of water of mass 14.2 kg is suspended by a rope wrapped around a windlass, that is a solid cylinder with diameter 0.350 m with mass 12.8 kg . The cylinder pivots on a frictionless axle through its center. The bucket is released from rest at...

Let's say I go to the store and purchase a rope. On the package of string, it says that the string can only withstand 100 Newtons before the rope snaps. I go home and test the tension in the rope. I tell a friend to pull on the rope at 99 Newtons while I pull on the rope with 99 Newtons. Did...

Hello, I am trying to determine the tension in a belt conveyor transporting material to calculate the motor power required and also tensioning force needed on it. I wanted to know how the material weight that is being carried affects it. I considered the tension to be equal to the friction...

Homework Statement What would be the effect on the following if the load torque is increased and the speed maintains constant: a) the tension in the tight side of the belt b) the tension in the slack side of the belt c) the power transmitted Homework EquationsThe Attempt at a Solution I...

I need to calculate the force required to pull a copper wire, please can anyone help for the same

Homework Statement I am just doing problems in 3000 solved physics problems in physics and I disagree with one of the answers and wanted to see if I am just an idiot or not This is the picture of the problem This the a picture of the solution in the book. It maybe hard to see the answers...

So two masses M1 and M2, are attached to each end of a cable, and the cable was hung over a pulley. M1 is 5kg M2 is 3kg ΣF=20N ΣM=8N The system would be accelerating at 2.5ms-2 but how would you calculate the tension of the cable? (g=10, cable is massless, pulley is frictionless)

Homework Statement metal piece = 300N As this metal piece is in balance, what is the tension in each cable? Picture of the problem in attachment. Homework EquationsThe Attempt at a SolutionW = 300*[0 0 1] D to A: vtda = tda [sin(37), sin(37)*sin(90), -cos(37)] D to B: vtdb = tdb...

Hi all, first post here. I'm a junior Physics/Math double major at UMass Amherst, playing with some problems over the summer. I'll get right into it. A rope with constant tension T is deflected through the angle 2\theta_{0} by a smooth, fixed pulley. What is the force on the pulley? It is...

what will be tension on string pulled by equal but opposite forces?

These is my problem Assuming the surface on which A rests is frictionless and there is no drag on either of the bodies as they move at common acceleration. Correct me if I’m wrong, I think the bodies should have a common acceleration since they’re connected Why does F? exist??, I know that...

https://auddoq.dm2302.livefilestore.com/y2mGb2n5mfKxwU4nZlLmOvyElgDcG0-5GG9dGoP4AbrV1taK31XrOoPmeyf9x9RQZ8kXLi0WG2Etd0-I8bVWqOgVufahONs02hTGFS-SUwBVRyd-ajz5Eza-nrk9yWa7kF6kPFtMdPD6MGIpfwQMhywCLfOOuIO4-3tLe1_KjSf9V0/20150505_234057356_iOS.jpg?psid=1 if the image does not show here's the link...

Homework Statement [/B] Keep in mind this is a Top Gun-themed homework assignment. Cougar comes in for a shaky landing. His 20422 kg airplane traveling at 85 m/s strikes the deck at 3.5 degrees below the horizontal. Cougar's plane snags the landing cable stretched across the deck. The landing...

Homework Statement Homework Equations a=Rα The Attempt at a Solution Free body diagrams: For larger pulley, TR=Iα ⇒ T=½MRα If this pulley rotates by some amount suchat x length of rope becomes free, and if I hold the smaller pulley at rest, then this extra length of rope comes bellow the...

Hello, everybody. Is surface tension a conservative force? I think so, because it is related to surface energy. But I am not 100% sure. Thanks a lot.

Homework Statement A mass m on a frictionless table is attached to a hanging mass M by a cord through a hole in the table; the hole has no frictional effect on the string. Find the condition (the speed of the mass and the radius of its circular motion) with which it must spin for M to remain at...

Homework Statement Tarzan (mass of 80kg) has an 18m vine stretched horizontally from his hut to a pivot point P, as shown. He uses it to swing across the gorge to visit Jane's hut, starting from rest to conserve energy. One day Jane spoiled his plans by fastening a strong, thin, smooth...

Homework Statement A diving sphere has a mass of 150,000.0kg and an external diameter of 7.000 meters. The sphere is anchored with a cable on the bottom of an ocean, at a depth of .8000 km. The density of sea water is 1025.0kg/m3. A) What is the absolute pressure at that depth in pascals? B)...

Homework Statement Just wanted to check my work on this one. An aluminum wire is clamped at each end under zero tension at room temperature. The tension in the wire is increased by reducing the temperature which results in a decrease in the wire's equilibrium length. What strain (ΔL/L) will...

Hello, My friend needs to transfer construction objects across a pond, came up with this idea of tying a rope between the pond and a big tree then transfer objects through a pulley, I'd like to know how to calculate the tension and will the thin concrete wall withstand the load? Here a diagram...

Hello , which of the following has the correct T direction?

Homework Statement A string is held under tension, with both ends fixed, and has a fundamental frequency of 250 Hz. If the tension is doubled, what will the new frequency of the fundamental mode be? Homework Equations The Attempt at a Solution I don't know how tension can affect the equation...

Homework Statement Homework EquationsThe Attempt at a Solution seems like Torque = r f sin theta should be used here but we don't know r. Am I suppose to find the x and y components of the tension of the chain? off topic : if the chain was moved so it would just be above the end of the rod...