Rope Definition and 824 Threads

A piece of nylon rope used by a mountaineer extended by 1.5 m when carrying the load of the 80 kg mountaineer. If the total length of the rope is 50 m and its diameter is 10 mm, determine the Young’s of this material. If the Poisson’s ratio of nylon is 0.1, determine the change in the diameter...

A man with mass 70.0 kg stands on a platform with mass 25.0 kg. He pulls on the free end of a rope that runs over a pulley on the ceiling and has its other end fastened to the platform. The mass of the rope and the mass of the pulley can be neglected, and the pulley is frictionless. The rope is...

I have a simple question to resolve a dispute at work. If I have two opposing forces connected by a rope, applying 50 lbs of force in opposite directions, do i have 50 lbs of force on the rope or do i have 100 lbs of force? (of course assuming no friction and what not)

A steel rope in a cole mine should lift a load of 3500 kg from an underground level of -500 m. The rope is made from steel wire rod. The allowed stress in the steel rope is 60 N/mm². a) Calculate the necessary section area of the rope and the necessary number of wire rod strands in the steel...

If a man, weighing m1g is tryingting to climb up or down a rope, and the max tension T that the rope can withstand is 2m1g/3, then find the maximum speed and acceleration with which the man can climb without breaking the rope. My work: 2m1g-m1g=m1a =>a=-1g/3 doesn't this mean that the...

I would like an aid in the following problem(a tip): Find the equation of motion of a homogeneous rope, knowing that the tension is not more constant and that each element of mass carries through only vertical displacements. It does not make the approach of small displacements and considers...

Mass 1 = 10.0 kg Mass 2 = 3.00 kg The pulleys and rope are massless, and there is no friction. What is the tension in the rope? What is the acceleration of mass 1? If my thinking is correct, the tension is half the weight of mass 2 (14.7 N), and the acceleration of mass 1 is 1.47...

Question Details: A cowgirl ties one end of a 10.0-m-long rope to a fence post and pulls on the other end so the rope is stretched horizontally with a tension of 140 N. The mass of the rope is 0.800 kg. a) What is the speed of transverse waves on the rope? b) If the cowgirl moves the...

Hey there all of you. I am doing some studying for my final for physics and i have come across this question. I thought it was easy but it is not working that way. The question is. A 4kg block (held by a block) is accelerating down at 3 m/s/s, what is the tension of the rope? So I am...

http://www.olemiss.edu/mathed/geometry/tight.gif To determine the shortest rope that can be wrapped around the two circles any ideas? i have forgotten everything about geometry. My nephew asked me this

Hi, fellows ! In an arrangement of 2 slinding blocks connected by a cable (rope). I can state the blocks position and their velocity as a consequence. On the other hand, i can't figure out the cable velocity...which concept should I apply for ? VB=18in/s > (Info) VA= 27 in/s > (found)...

Two point-lie objects, each with mass m, are connected by a massless rope of length l. The objects are suspened vertically near the surface of Earth, so that one object is hanging below the other. Then the objects are released. How can I find the tension in the rope? I know there 3 force...

1: Determine the escape speed of a rocket on the far side of Ganymede, the largest of Jupiter's moons. The radius of Ganymede is 2.64 X 10^6m, and its mass is 1.495 X 10^23 kg. The mass of Jupiter is 1.90 x 10^27 kg, and the distance between Jupiter and Ganymede is 1.071 X 10^9m. Be sure to...

does a pendulum hanging on a rope has any normal force??

On a hot summer day a young girl swings on a rope above the local swimming hole. When she let's go of the rope her initial velocity is 2.65 m/s at an angle of 35.0° above the horizontal. If she is in flight for 1.30 s, how high above the water was she when she let go of the rope? can anyone...

A uniform sphere of mass m and radius r is held in place by a massless rope attached to a frictionless wall a distance L above the Centre of the sphere. Find the tension in the rope and the force on the sphere from the wall. I tried to get a picture, but it is apparently too big to host...

Hi all, I was hoping for a little help with this problem. I already have the solution but I don't understand how they got the answer. The question is: A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at constant speed by a rope. The rope is inclined at 20.0° above the...

Ok I am new this forum so hello to all. Here is the problem that I've been working on. Is this right or wrong and what is the right answer? Two blocks are connected by a rope that wraps around a pulley. A force of 50 N acts on the 5 kg mass at an angle of 36 degrees. 1. what is the...

Ok, I already posted this a few days ago but I am bringing it back because i don't quite understand a man sits in a bosuns chair that dangles from a massless rope, which runs over a massless frictionless pulley, and back down to the mans hand. The combined mass of the man and the chair is...

A uniform rope of mass 'i' per unit length is coiled on a table, one end s pulled straight up with constant speed Vo. a. find the force exerted on the end of the rope as a function of distance of the top of the rope above table (y). b. compare the power delivered to the rope with the rate of...

How much tension must a rope withstand if it is used to accelerate a 1800 kg car vertically upward at 0.60 m/s2? could someone tell me how to start this problem? thanks so much!

How do you solve this problem? Arlene is to walk across a high wre strung horizontally between two buildings 10.0meters apart. The sag in in the rope when she is at the mid point is 10 degrees. If her mass is 50 kgs, what is the tension in the rope at this point?

Hi, i have a solution to the following problem but I'm not sure if it's right or not. If you shake one end of a taut rope steadily three times each second, what would be the period of the sinusoidal wave set up in the rope? Me, I thought that since I'm shaking the rope three times a second...

A stone with mass 2,0kg is tied to a rope with radius 1 meter to the circle center, and has the velocity 4 m/s. a) What's the tension on the rope on the top point of the circle? b) What's the tension on the rope on the bottom point of the circle? Here's my attempt to solve these...

A 212-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 29.1° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.757, and the log has an acceleration of 0.720 m/s2. Find the...

Hey, I need some suggestions to approach the problem: A lifeguard standing on a tower throws a buoy to a swinner 5m from the tower. The lifeguard, positioned 3 m above the water, pulls in the rope at a speed of 1m/s. How fast is the swinner coming to the shore when he is at 4m from the...

A rope is wrapped around a wooden sylinder with I=2.9 and radius = 0.25m A 50 kg crate is suspended to the free end of the rope and is pulled upwards with an acceleration of 0.80 m/s*s A crank handle is attached to the axle of the wooden cylinder and when turned rotates about the axle in a...

Indiana Jones! My physics class had this problem for our homework set this week and nobody has figured it out. We asked for help from our TAs today and they didn't know how to help us either. If someone could look at this problem and tell me what they think I would really appreciate it...

I need to figure this question out. I have to find the tension on the rope (1.14m) after swinging an airplane (.115kg) in the air for 1.49s. Any help? I did it like this. I found the velocity (v=d/t) using .82m as the distance (radius) (or should I have used 1.14m instead?). The velocity...

A guy wishes to swing across a hole, using a vine rope. In order to reach the other side he must swing so that the rope makes a maximum angle of 40 degres to the vertical. Regarding the guy as an 85 kg point mass, what is the minimum breaking tension of the rope if the rope is not to break?

A 55.0 kg circus performer oscillates up and down at the end of a long elastic rope at a rate of once every 8.40 s. The elastic rope obeys Hooke's Law. By how much is the rope extended beyond its unloaded length when the performer hangs at rest? I drew a free body diagram and summed up the...

I seem to be having trouble conceptualizing this question that I was asked to solve. In the problem, I have a rope of length L held so that the bottom of the rope barely touches the surface below it. At this point, the rope is released and falls to the surface. The question involves the...

A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at a contstant speed by a rope. The rope is inclined at 20.00degrees about the horizontal, and the sledge moves a distance of 20.0m on a horizontal surface. the coefficient of kinetic friction between the sledge and surface...

A sled is dragged along a horizontal path at a constant speed of 1.5 m/s by a rope that is inclined at an angle of 30 degrees with respect to the horizontal. The total weight of the sled is 470 N. The tension in the rope is 250 N. How much work is done by the rope on the sled in a time...

I wonder how could I calculate impact force of an object (eg. a stone) in a free fall impacting on the perfectly inelastic (perfectly hard) floor. I know: - m -mass of the falling object - h -height of the fall - v -speed at the time of impact - t -time it...

ASsume teh z axis is the vertical axis A homogenous rope of mass M and length L hangs vertically from a point of hte ceiling. Find the magnitude of the force F(z) by which the top part of the rope acts on teh lower segment of the rop at the distance z from the free end of the rope. Not...

The monkey climbs the rope trying to get the banana seen http://home.earthlink.net/~urban-xrisis/clip002.jpg I need to find the net torque and the total angular momentum about the pully axis. I am absolutly stumped but I'll give it a shot. So the monkey is moving upwards that means it has...

Im revising for an exam and I am practising past paper questions. I came across this question I am stuck. Please help. A sledge of mass 78kg is pulled up a slope by a rope. The slope is rough and is inclined at an angle of 22.6 degrees to the horizontal. The coefficent of friction between the...

A box of mass M = 5.7 kg is suspended by a rope over a pulley (Figure 5.64). Find the tension in the rope supporting the box and in the rope supporting the pulley. The tension in the rope supporting the box should just be mg? right? But the two labeled angles are not the same. Combined...

A 59.0kg box hangs from a rope. What is the tension in the rope if The box is at rest?

please help! i don't know how to solve da problem please help: Two ropes are used to carry a load of weight 400N. The ropes are 40 degrees to the horizontal. Show that the force applied by each rope is to the container is abou 300N.

I have problem figuring out the reflection of a pulse on a rope with a fixed point. Do you know some websites to find animations about it?

Hello I often go climbing. When I went with a guide recently he told me that you should be especially carefull when climbing when you only have a small length of rope paid out arguing that because the rope is so short at this point it must take a large shock under a fall. Conversley, if you...

How would I calculate this A horizontal force of 809 N is needed to drag a crate across a horizontal floor with a constant speed. Pete drags the crate using a rope held at an angle of 33°. What force does Pete exert on the rope?

How would I find the tension of a rope that is attached to an object being swung around in a circle? If I find the centripetal force would that be the same thing as the tension?

An 80 kg person standing on a 20 kg plateform is suspended by a rope passing over a stationary pulley that is free to rotate. The other end of the rope is held by the person. The masses of the rope and pulley are negligible. You may use g=10 m/s/s. Assume that friction is negligible and the...

>> A taut rope has a mass of 0.165 kg and a length of 3.75 m. What power must be supplied to the rope to generate sinusoidal waves having an amplitude of 0.120 m and a wavelength of 0.480 m, traveling with a speed of 30.5 m/s? I'm not really sure how to start this. I have an equation of...

This question looks really simple, but I'm having surprising difficulty with it. A hemisperical sign 1 metre in diameter and of uniform mass density is supported by two ropes, as shown in the diagram. What fraction of the sign's weight is supported by each rope? I am having trouble...

One question related to Newton's third law, v t p u o u o It is a rope with a wheel,v. If 50N is applied from u pulling towards the ground, what's...

A refrigerator is approximately a uniform parallelepiped h = 7 ft tall, w = 3 ft wide, and d = 2 ft deep. It sits upright on a truck with its 3 ft dimension in the direction of travel. Assume that the refrigerator cannot slide on the truck and that its mass is 100 kg. For the first three parts...