FBD Block 1
FBD Block 2
FBD Pulley B
I'm mainly concerned with the coordinate system direction in this problem, but just to show my attempt, here are the equations I got from the system.
##-T_A + m_1g = m_1a_1##
##T_B - m_2g = m_2a_2##
##T_A - 2T_B = 0##
Using the fact that the lengths...
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First thing that I notice is that the other part of string (to which body 2 is connected) is fixed. Therefore, I concluded that the body 2 is stationary with respect to the pulley 2 (let's agree that pulley to which body 1 is connected is pulley 1 and in same way pulley 2 is defined)...
Further given:
- every beam is infinite stiff
- pulleys are massless
- cables don't stretch, no slip, and frictionless.
-Every pulley has a diameter D except pulley Q. Pulley Q has diameter 0.5*D
So what I don't understand is how to calculate/determine the velocity at R and S. Can someone help...
Let me draw a free body diagram for the man. I assume that for both cases (a) and (b), the man pulls the block up with uniform velocity.
(1) In case (a), realising that the man is in equlibrium (##\Sigma F = 0##) the normal reaction on the man ##N_a = w_M + T## is given by ##N_a = (50+25)\times...
Now I am working with a DIY Luffing Jib Crane.
Mys subcon said that:
Tension of red rope for hanging a blue box load at the tip of the boom i(A) s as the same as hanging it with pulley and tied to the motor/ground_B (System in a Static Load Condition)..
Blue Rope and Pulley weights are...
Hi!
I'm working in a new area and I'm looking for inputs/suggestions for relevant factors to look into and possible ressource where I can read about this :)
I did some tests in a pulley similar to the one below.
I had a fixed weight at M2. I started with M1=M2 but added weights to M1 until...
Homework Statement
Two objects are connected by a string that passes over a frictionless pulley, where m1<m2 and a1 and a2 are the magnitudes of the respective accelerations. Which mathematical statement is true regarding the magnitude of the acceleration a2 of the mass m2?
(a) a2<g
(b) a2>g...
Consider a massless string which can rotate about a fixed pulley (first picture). The coefficient of static friction is μ. Assuming that the motion is impending, the goal is to find the equation that describes the variation in tension of the string.
( T2/T1 = eμΦ where Φ is the subtended angle.)...
Homework Statement
The question says "A block of mass 4kg on a friction less inclined plane at angle of 30° is connected by a cord over massless friction less pulley to a second block of mass 2.3kg hanging vertically. What is the magnitude of acceleration of each block."
Given
m1 = 4 kg
m2 =...
Actually it is a simple one, but the point of view of the force acting in pic attach of some people are different.
http://www.imagebam.com/image/ef24231032403754
http://www.imagebam.com/image/01c8e71032403724
The adding weight of hoisting slink blue and the pulley is neglected.
I think the...
Homework Statement
2. Relevant equation
The Attempt at a Solution ...[/B]
Part c)
I'm confused as to how the actual pulley system works. If its balanced wouldn't it be stationary. How does it move?
I thought that since its balanced the acceleration of the system is constant and therefore...
Homework Statement
A block of mass 2.42kg is accelerated across a rough surface by a rope passing over a pulley, as shown in the figure below. The tension in the rope is 13.9N, and the pulley is 12.3cm above the top of the block. The coefficient of kinetic friction is 0.395. (a: 2.28m/s^2)...
Homework Statement
I had to answer which of the pulley arrangements illustrated (see picture) is in equilibrium (the drawing went a bit difficult, please see all outer boxes as equal in size and the middle ones as well) I managed to answer that it is arrangement C, by finding out that...
Homework Statement
The objects are set free from the scenario shown in the attached image. Their masses have been given and they are under the effect of gravity. The length of the string has been shown in the figure. If the two blocks cross each other, then we need to determine the minimum...
Homework Statement
Two blocks of mass(4 Kg and 0.1 Kg ) are connected by a mass less string that passes over a friction less pulley.The 4 Kg mass rests on the ground and the 0.1 Kg is hanging above the ground.Find the minimum distance from which the 0.1 Kg mass can be lifted and drop so...
Homework Statement
https://imgur.com/jE8SMDR
That's a drawing of the problem. I need to solve for the ? weight.
Homework Equations
not sure
The Attempt at a Solution
none, I don't want the answer, I just want the relevant equations. I haven't taken physics in a few years though (I'm out of...
Homework Statement
Under the action of force P the constant acceleration of B is 6 m/s^2 up the incline as in figure. For the instant when B's velocity is 3 m/s up incline, what is the velocity of point C? How do I solve this using constraints?
[/B]
Homework Equations
For a pulley system ΣT.v...
Homework Statement
Hello, I am currently studying mathematics and physics on my own, and I ran into a type of problem in physics that is a bit unclear to me.
Say we have pulley at the top of an inclined plane with a base angle of alpha and the top angle is alpha.
Homework Equations
I assume...
Homework Statement
Homework Equations
g is the acceleration due to gravity
a is the acceleration of system
The Attempt at a Solution
g is the acceleration due to gravity
Force=3(g+a)
Force=6(g-a)
solving both equations,
a=g/3
tension =force=4g
How do i calculate tension in the particular...
Homework Statement
[/B]
A light rope passes over a light frictionless pulley attached to the ceiling. An object with a large mass is tied to one end and an object with a smaller mass is tied to the other end. Starting from rest the heavier object moves downward and the lighter object moves...
Homework Statement
Homework Equations
only basic school level physics will be needed in this question.
The Attempt at a Solution
The mass m1 pulls spring from first side and m2 pulls spring from the other side therefore reading should be m1-m2.
But my answer is wrong.
I cant understand what...
Hi, i need to do a pulley/shaft check on an existing system.
Pulley is 840mm diameter and the motor has 47kw and 390 nm breakdown torque so to find the force from the belt can i assume that the force at the pulley o.d. distance is the force? So 390*0.84 will give the torque at that distance...
Homework Statement
[/B]
Homework Equations
[/B]
The Attempt at a Solution
In the second question at 5:32,why doesn't the block have a spring force.In FBD of 2nd block it should have been mg-(T+kx)=ma right?
Hi everyone. I found this image online that made me question a couple of things that might be a bit humiliating to ask:
I always thought that tension is simply a pulling force, meaning that the mass is suspended because the tension force pulling the mass is equal to the weight force of the...
What I've attempted to do is resolve vertically and horizontally:
T1sin(30)+T2sinΘ+T2=9g
T2cosΘ=T1cos30
After that.... I'm completely stuck. Any help would be appreciated, I've spent so long on this I bet I'm just missing one simple thing.
Thanks in advance
Homework Statement
The two blocks, m1 = 3.3 kg and m2 = 4.8, in the figure below are connected by a massless rope that passes over a pulley. The pulley is 12 cm in diameter and has a mass of 2.0 kg. As the pulley turns, friction at the axle exerts a torque of magnitude 0.64 N · m. If the blocks...
Its getting hard for me to deal with the problems related to tension and reason behind this is not clear understanding of the concept so i have few questions on this.
What causes tension in a rope/string(i think its related to electromagnetism, but i am not getting the clear idea behind this)...
Homework Statement
When the motor in the figure below lowers the m = 1200kg mass, it produces a tension of 1.15E+4N in the cable on the right side of the pulley. The pulley has a moment of inertia of 71.3kgm^2 and a radius of 0.794m. The cable rides over the pulley without slipping. Determine...