What is Vertical: Definition and 1000 Discussions

1. A body, whose mass is 10kg, is vertically raised upwards h=2 m . 230J work was done. Find the acceleration.Homework Equations W = Fh F = ma The Attempt at a Solution W = Fh F = A/h = 230J / 2m = 115J F = ma a = F/m = 115J/10kg = 11.5 m/s^2

Homework Statement Homework Equations ΣF , ω=√(k/m), f=w/(2pi) The Attempt at a Solution I figured since the only forces acting on the block is the Spring force and a normal force in the downward position. Not a hundred percent sure of this though. For Disc: ΣFy= Fn - Fg - fs (static) = ma...

Hey, I need help with a lab I'm doing in class. The goal is to hit a target on the ground by shooting a bullet from a toy gun. Our distance from the target will be assigned to us by our teacher and I need to calculate the initial velocity of the gun and then hit the target by only changing the...

Homework Statement Assuming the keys are moving in uniform circular motion![/B] Keys with a combined mass of 0.100 kg are attached to a 0.25 m long string and swung in a circle in the vertical plane. a)What is the slowest speed that the keys can swing and still maintain a circular path...

Hi PF! I am very new with Latex and was building a resume using a downloaded template. What I would like to do is create a vertical line down the page. Can anyone help? The line of code that seems to create a horizontal line is...

Homework Statement Water (η = 1.00E-3 Pa·s) is flowing through a horizontal pipe with a volume flow rate of 0.0125 m3/s. As the drawing below shows, there are two vertical tubes that project from the pipe. Assume that H = 0.0458 m and L = 0.738 m. Calculate the radius of the horizontal pipe...

At the point B, there is supposed to be a force B that is perpendicular to the angled piece of metal. Why is the angle that the force makes with the horizontal 20? Should it not be 70?

The maximum "hang time" for a human who jumps in the air under his own power is said to be less than 1 second. This includes jumping on the spot, running jumps, hops, leaps, dives, and bounds. Javier Sotomayor (Cuba) is the current men's record holder with a jump of 2.45 m (8 ft 1⁄4 in) set in...

Homework Statement A 27-kg chandelier hangs from a ceiling on a vertical 4.0-m-long wire. What horizontal force would be necessary to displace its position 0.15m to one side? Homework Equations [/B] F*x = m*g*hThe Attempt at a Solution [/B] I tried to find the height the chandelier...

Homework Statement A physics class researching projectile motion constructs a device that can launch a cricket ball. The launching device is designed so that the ball can be launched at ground level with an initial velocity of 28.0 m s–1 at an angle of 30.0 degrees to the horizontal. Homework...

If I only wanted a certain amount of water to enter a downspout from my roof (going to a planter) at any given time, and any extra would be diverted to a secondary downspout (going to the storm drain, or yard) how would that be possible? I was thinking that the more water flowing along a...

supposing a constant acceleration Vertically a horizontal incoming photon is considered. We know that in the frame of the lift the vertical speed of the photon will increase, hence its horizontal one will decrease and then the photon trajectory has a vertical asymptote ?

Homework Statement A spring with spring constant k = 60 N/m and unstretched length of L0 = 2.2 is attached to the ceiling. A block of mass m = 1.5 kg is hung gently on the end of the spring. 1) How far does the spring stretch? Answer is .245 m 2) Now the block is pulled down until the...

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...

For my homework I was given a velocity diagram of the Juan de Fuca plate similar to this: The first question is as follows: Measurements indicate that the Juan de Fuca plate is moving at a speed of ~40 mm/year. Calculate, and draw diagrams that show, the horizontal and vertical components...

Homework Statement A person with the mass m swinging in a pendulum motion (vertical circular motion) hangs by a rope (with negligible mass) that can stand a tension of two times the person's mass. I am trying to calculate the maximum angles of the circular motion without the rope breaking...

Homework Statement https://www.dropbox.com/s/mw1ol8tnrdf0ajb/fm%20prob.JPG?dl=0 [/B] A 1-m wide by 2-m gate in the vertical wall of a reservoir functions like a door. It is hinged at A and B and latched at C. Determine the forces at A, B, and C when the water surface is 700 mm above the top...

Homework Statement A 5.00-kg block is held at rest against a vertical wall by a horizontal force of 100 N. (a) What is the frictional force exerted by the wall on the block? (b) What is the minimum horizontal force needed to prevent the block from falling if the static coefficient of friction...

I made notes on this in class, but I did not understand everything about it. So, what I know is that vertical motion is when the object goes around in a circle like this: And horizontal I guess it is like this: But then I am very confused regarding what my teacher told me for horizontal...

Homework Statement A small ball rotates in a vertical loop of radius R. it's velocity is the minimal required to stay in the loop. Now the loop is cut at an angle ##\alpha## and the ball shoots out of it. Express ##\alpha## so that the ball falls back into the loop and continues turning...

Please explain!

Homework Statement an object of mass 0.4kg is attached to horizontal spring of ,,spring constant 80N/m,,and it is displaced 0.1m from equilibrium postion and released from rest,,such that it perform up and down simple harmonic motion.find its velocity when it passes through equilibrium point...

Homework Statement A plane makes a vertical loop like in the drawing. the speed is exactly what is needed that at the highest point the pilot won't feel any force nor from the seat and nor from the safety belts. 1) what is the weight of the pilot in comparison to the airplane? 2) what...

If an object is attached to a spring and on top of that object another object is put (but not attached), how can the motion of the spring be described (the part that I find difficult is finding the normal force between the two objects) and when does the second object separate from the first one...

Suppose I have a vertical spring and an object. If I slowly put the object on the spring until it reaches the new equilibrium point, and then I push it more and after that I release it, when exactly will the object "separate" from the spring? Thank you.

I Need to design a Vertical cylindrical water tank to be build by Fiberglass. I need to calculate the tank also for 7.5 m bar pressure and 2.5 m bar vacuum pressure. Tank Dimensions to be 4m Dia, 5 m High (60000 Liters). I have Fiberglass laminate of 6 mm Thk and Modules is 1470000 psi. I have...

Homework Statement Suppose a non-uniform circular motion where a particle of mass "m" is attached to a string, which rotates on a vertical plane. Once an initial velocity is provided to the particle at the lowest point of the trajectory, no further forces act on the particle. (Air drag is...

Homework Statement A pendulum consists of a disk of mass M1, and a slender rod of M2 (which happens to be 0kg),. Determine the components of reaction that the pin O, exerts on the rod just as it passes the horizontal postion, at which time its angular velocity is ω. Know we know M1 =...

A wooden box on a weighing scale weighs 1 kg. Inside the box is a gyroscope which is set spinning, and the box is now tilted at 45 degrees to the vertical and maintains this position due to the gyroscope inside. What is the weight shown on the scale - is it 1 kg or less than 1 kg? Why is...

How does the orientation affect how much a steel tube can hold? or does it not really have an effect?

Consider the following problem: A spring with spring constant ##k## is suspended vertically from a fixed support and the spring is in equilibrium with a heat bath of temperature ##T## and resides in a gravitational field ##g##. A mass ##m## is hung from the other end of the spring. Find the...

Homework Statement A stick with mass ##m=0.1kg## and length ##a=0.5m## has on each end welded a spring with constant ##k=2000N/m## and length ##l=0.2m##. We stretch both of the springs and mount them on the sides of vertical walls which are ##d=1m## apart. Find both translational and...

1. First let me start by saying that there are similar posts about this, but I wasn't able to figure out what I need through those. A 3.45 kg mass vertically compresses a spring 67.0 cm before it starts to rebound. How high will the Mass move above the uncompressed if the mass is left to...

1. Homework Statement 1.Main question: Why would anyone need to know the total VERTICAL distance traveled by a bouncing ball? 2.Other question: Does anyone have a link to an explanation (or could explain themselves) on how to calculate the total HORIZONTAL distance traveled by a bouncing...

Hi everyone, If you have a horizontal circular motion (with gravity action on the object), what holds the object up in the horizontal plane? All vertical components of the tension go to zero when the angle with the vertical axis is 90°... Where am I going wrong? Thanks Ramana

Homework Statement Hey all! I'm new here but I think I'll like it. :) I have a question that I can't seem to figure out. Here is the question in short: GIVEN: A wheel of radius 1m on a vertical plane rotates with an angular acceleration of 4rad/sec2. The wheel starts from rest (ωo = 0)...

I get the theory: Fc = Ft + Fg Uniform circular motion, in the vertical plane. Fc = net force = centripetal force Ft = force of tension in the string Fg = force of gravity so at the top, with vector addition: Ft = Fc- Fg And if we define 'up' as positive, then should the equation look like...

Homework Statement A stone tied to a rope rotates in a vertical circle. prove that the tension in the rope at the lowest point is 6 times the stone's weight bigger than at the highest point. Homework Equations Potential energy: E_P=mgh Kinetic energy: E_K=\frac{1}{2}mV^2 Radial force...

Springs question -- vertical versus horizontal stretching... So I know hooke's law well enough and I understand the spring constant and it's vertical applications where force equals displacement times some constant. What I am unsure of is to what degree this all applies to a horizontal stretch...

Homework Statement Uniform rod AB with end B resting against rough vertical wall. Coefficient of friction between wall and rod is μ. Rod is 2m long and has mass 3kg. Rod is kept in limiting equilibrium by a light inextensible string, one end of which is attached to the end A of the rod and...

forces -- A block slides upward on a rough, vertical wall Homework Statement A block slides upward on a rough, vertical wall at constant velocity when a force F of 60 N acts on it at an angle Ɵ = 60ᵒ to the horizontal. The mass of the block is 3.0 kg. See picture below. a) Using...

Hello I have been struggling with this problem for a whole day, and finally admitting that i can't solve it, so i ask for help :smile: I am familiar with the escape velocity , and the speed needed to brake into interplanetary space - the Newton cannonball thought experiment. But i was wonder...

Hi guys I've a problem calculating the vertical jump from ground reaction force. We tested a person with a force plate, and we got this curve as a result: Homework Equations These are the equations, sorry for the danish language, but just look at the equations and not the text...

Homework Statement A student jumping on a trampoline reaches a maximum height of h = 0.96 m. The student has a mass of m = 58 kg. What is the student's speed immediately before she reaches the trampoline after the jump in m/s? answer: 4.338 If, when she lands on the trampoline, she...

Homework Statement Question: A mass m attached to a light string is spinning in a vertical circle, keeping its total energy constant. Find the difference in the magnitude of the tension between the top most and bottom most points. The Attempt at a Solution So for this one I've worked...

Imagine that a single bead has a hole in it. It is passed inside a " vertical " circle with no friction. Imagine that the "vertical"circle moves by spinning around its vertical axis and that the bead is, AT THE BEGINNING, on the bottom of the vertical circle. We had another problem related to...

Homework Statement A stone is dropped of a cliff. A second stone is thrown down the cliff at 10 m/s at 0.5s after the first stone. When do the stones cross paths? Homework Equations Yf = vt + at^2/2 The Attempt at a Solution My logic is the set the final position Yf equal for both stones...

Homework Statement This problem is very easy, but there is some conceptual point of view I am missing. There is a vertical rod of length L without mass on its own that has two masses, m1 and m2, attached at each end standing on point P at a table. The rod is at unstable equilibrium at first...

Hello, I work for a class 1 railroad in northwestern Ohio as a conductor. Approximately six months ago traveling down the tracks at a speed of 45-60 mph, en route to Pittsburgh, PA, my engineer and I encountered something bizarre and, for us, baffling. A light beam from every single light...

Homework Statement Create a program that displays a vertical bar character ‘|’ moving left to right in 79 positions across the screen, then back right to left across the screen. Homework Equations (16 bit Assembler) The Attempt at a Solution .model small .stack 100h .data...