Force components Definition and 37 Threads

I believe using the inverse square law it would be possible to produce a light saber made from lasers. By placing thousands of micro laser side by side a limited length beam could be formed but the combined energy would produce a seemingly single beam with the total energy accumulated from all...

This isn't really a question per se, but it recently just 'clicked' for me and I would like to share what made that do so. There are dozens of threads answering this question, but in my opinion most (but not all; there are some good threads on this forum, I just want to show how I came to...

Determine the amount and type (tensile or compressive) of the spring force so that the resulting force is a vertical force. Also get the resultant force. i find 60N (compressive) and resultant forces is 10800 is that correct?

FAx = F cos 40 FAy = F sin 40 2FAx = Drag Drag = 6128N The answer says 6200N

x component of ##F_3## ##F_{3x}= m a_x- F_{1x}-F_{2x}## = ##ma\cos 50-F_1\cos(-150)-F_2\cos90## y component of ##F_3## ##F_{3y}= m a_y-F_{1y}-F_{2y}## =##ma\sin50-F_1\sin(-150)-F_2\sin90## And so on… My question how we can represent it in diagram ##F_1\sin(-150)##. I suppose...

Another user suggested adding the forces in the x and y direction then dividing by 1.4. Doing this for A) gave me 4.285 which was wrong any suggestions?

Hi, I have a simple question but I want to be 100% sure that my reasoning is correct. Take a look at this picture showing forces acting on an airfoil: Green forces (X and Y components) are known from CFD software but I need the values of blue components (lift and drag). Of course for zero...

I do not understand why the tan component for a gravity affected by the centrifugal force: g = Ω^2 * R * sinθ * cosθ So I tried to draw this: using a "big" X-shaped axis where the / component goes along the main gravity direction while \ points normal to / this direction. Then the centrifugal...

Homework Statement A box of mass X kg hangs motionless from two ropes, as shown in the diagram. The angle of rope 1 is specified amount of degrees. Choose the box as the system. The x-axis runs to the right, the y-axis runs up, and the z-axis is out of the page. What is the magnitude of |F2|...

Imagine an aircraft of which the its wing is connected to its landing gear by means of a hinge (joint), and then the gear suddenly gets stuck midway. If, subsequently, the aircraft makes a turn around its longitudinal axis (see picture), it seems to hold true that then the angle between the...

1. The problem statement, all variables and given/known data Homework EquationsThe Attempt at a Solution B at rest. A moves 7m/s and bump into B. Object A is frictionless. Object B not, coeff of friction = 0.2. g = 9.8 m/s2 After collision both objects moves together with speed 2 m/s to the...

Homework Statement Homework Equations f = Spring's constant * ##\Delta x## Potential Energy = ##\frac{1}{2} kx^2## The Attempt at a Solution I try to find constant of the springs Fabove + Fbelow - W = 0 k*(0,2 m) + k*(0,2m) - ##\frac{1}{2}## * 9,8 = 0 0,4k = 4,9 k = 12,25 N/m can I use...

Homework Statement A Rod of Mass "M" is attached to a two-way hinge on the floor. It is being pulled by a spring (extension spring, so force is pulling the rod to the right, causing it to move clockwise). The hinge is frictionless. the rod has a mass of 5kg evenly distributed the pulling...

Homework Statement there is a frictinless slope. And there is a box sliding down the slope. let's say that the slope slides from right, towards the down and left. object's mass is unknown value m. angle of the slope is 35deg. calculate the absolute value of the acceleration that the box has...

City bus estimated at 50,000 lbs is at a stop light and completely stationary. It's on a flat surface. Bus is hit by a 3600 lb car traveling at 45 to 50 mph hits bus from behind. This bus is shoved fforward 3 feet. 275 lb person leaning into frame of bus just above where the impact occurred. How...

Homework Statement A box of textbooks at unknown mass rests on a loading ramp that makes an angle α = 16o with the horizontal. The coefficient of static friction is 0.30, and kinetic friction is 0.25. Then the box is released. (a) Will it start sliding down the ramp? (a) Find the normal force...

Homework Statement What is the tension in a pendulum? Is T=mgcos(theta) or is T=mg/(cos(theta)) ? and is the x component of tension is mgsin(theta) and this is the restoring force? Homework Equations Fnet=ma Fg=mg The Attempt at a Solution Maybe it depends on the problem given? But I am...

Homework Statement Consider the figure below, we need to find the charge on Q_0, both charges Q are negative. It is given that the net charge on Q_A is zero. The figure of the problem is attached. The Attempt at a Solution I understand how to get the solution except for one part. I'm just...

A charge Q is placed at a distance a = 3m and a charge q is placed at a distance b For what value(s) of b is the x-component of the force maximized? I know to maximize the force we need to maximize F_Qq = k Qq b/(3^2 + b^2)^{3/2}. To do this we need to set the first derivative to zero and...

Homework Statement Four charges of 2*10^-7 are placed on the corners of one face of a cube of 15 cm. A charge of -2 * 10^-7 C is placed at the center of the cube. What is the force on the charge at the center of the cube? Homework Equations F = k q_1*q_2/r^2 The Attempt at a Solution...

I have a construction containing two force sensors. http://postimg.org/image/3zv76lo3b/ The sensors are not able to divide the force into components. If a force is applied that ´tips´ the upper plate, I was wondering if it was then possible to divide the force into horizontal and vertical...

Homework Statement Find the equation of the horizontal components of two strings tied to a painting at 45 degree angles with the horizontal.Homework Equations Fnet = 0The Attempt at a Solution Since the painting is in equilibrium, I found that, in the horizontal direction, Fnet = 0 = S1x -...

Consider the pith balls in the diagram: Both of them has mass 'm' and charge 'q'. The question asks for the charge on both the pith balls. The concept is a bit straightforward. But I am confused at the force distribution experienced by the pith balls. My text tackles the problem with...

Could someone credible please check my work on this one? Homework Statement This problem is "pulling a sled up a slope" All relevant data is in the picture. I wanted to find FP (The force one has to pull to start the sled moving up with slope). mass = 26.0kg μs = 0.096 slope of hill = 12...

A roof purlin, supported by a roof rafter must support a 300 lb vertical snow load. Determine the component of of the snow load as a concentrated load “P” both perpendicular and parallel to the axis of the rafter. I read that the perpendicular component of the 300lb force can be figured out by...

Homework Statement Givens: Mass of Cart = 1156g = 1.156kg Mass on string = 400g = 0.4kg Mass on Cart = 1003g = 1.003kg The weight attached to the pulley generates the applied force. Homework Equations Calculate the force applied. The Attempt at a Solution Look on the sheet.

Hello everyone, I have here one important abstract question which makes up some perplexity to my understanding. Attached to this post is one pic of F and two new introduced axes ( u and v ) . Let us for instance not consider them as perpendicular to each other. Now, if I...

Homework Statement There is no variable for it but we know the angel σ, g, the mass of m1 and m2, m2>m1 and the coordinate system must be considered like that. I know the other method which the coordinate system is parallel to the inclined plane's hypotenuse. Homework Equations F=m*a...

Homework Statement Pin C joins members ABC and CDE Homework Equations Sum of moments at a point = 0 Sum of vertical forces = 0 Sum of horizontal forces = 0 Weight of triangle acts as a force at its centroid (1/3) its length according to this figure. The Attempt at a Solution...

I am making an n-body simulator, but I'm stuck. How can I find the components of the Force acting between two bodies such as the Earth and the Sun. I know it's- F * Cos(theta) and F * Sin(theta) but if I don't know the angle how can I find the components? I'm using the diagram on this...

Homework Statement Find the component of the force \vec{F} = 2\hat{i} - 2\hat{j} + \hat{k} in: a) the direction (\hat{i} + \hat{j} - \hat{k})/\sqrt{3} b) the direction of the vector 3\hat{i} + 2\hat{j} - 6\hat{k} Homework Equations dir \vec{A} = \vec{A}/|\vec{A}|The Attempt at a Solution...

Hi, When drawing the FBD (ex. block on incline), and when you split a force into x and y components, where do you put theta when giving the angle of let's say, the incline? Is there a trick to this? I generally know where to put it (basic trig), but for some reason I can't use trig for some...

Homework Statement There is a resultant force going towards the positive x-axis at 500 lbf. Force 1 is going 45 degrees above the positive x axis. Force 2 is going 30 degrees below the positive x axis. What are magnitudes of Force 1 and Force 2? The Attempt at a Solution I wrote up...

Consider the motion of an object on the xy-plane. Show that the force whose x and y- components are respectivley Fx= (3N/m)y and Fy= 0 is not conservative.

Homework Statement I need to find the component of W (the 400N force) that is parallel to the slide as in the attached picture. As you can see there is a 24 degree angle between the surface and ground.Homework Equations The Attempt at a Solution I should be using simple trigonometry. The...

Homework Statement a box weighing 388.5 N on an inclined plane that makes a 36.1 degree angle with the horizontal. compute the component of the gravatational force on the inclined plane in N Homework Equations The Attempt at a Solution would you find the gravatiational...

I am having a problem with this question. I can't figure out how to approach it. A solid sphere of mass m and radius r rolls without slipping along the track. it starts from rest with the lowest point of the sphere at height h above the bottom of the loop of radius R, much larger than r...