Ballistic Definition and 139 Threads

Homework Statement A 11.0 g rifle bullet is fired with a speed of 360 m/s into a ballistic pendulum with mass 9.00 kg, suspended from a cord 70.0 cm long. A.) Compute the initial kinetic energy of the bullet B.) Compute the kinetic energy of the bullet and pendulum immediately after the...

Homework Statement How was energy lost while using the ballistic pendulum? Homework Equations Initial KE= 1/2mb*Vb^2 = 0.929J Final Potential graviational = (m+M)gh= 0.198J Energy loss = 0.929J - 0.198J= 0.731J The Attempt at a Solution I think the answer is: energy lost dues to...

Hi, I've tried to figure this out but I just can't! Please help me understand how to work it out? A ballistic cart is a wheeled cart that can launch a ball in a direction perpendicular to the way the cart moves and can then catch the ball again if it falls back down on the cart. Holding the...

http://latex.codecogs.com/gif.latex?(d^2Y)/(dTdY)=%20-c(dY/dT)-9.8(dT/dY) basically how do you integrate dy/dt with respect to y, I know dy/dt integrated with respect to t is simply Y, but the other I have no idea. background: C is a constant that is a function of air pressure and is from the...

Hey guys, I understand that 'ballistic re-entry' is usually used in the context of drag only with 0 lift, but if I were to look into the effects of lift how would I go about resolving the forces acting on a body at each instant to determine the instantaneous body acceleration ? My initial...

Can anybody explain in a few words these two modes of spin transport and what are the difference between them. Thanks.

In solving a ballistic pendulum problem, you can break it up into two parts: (1) A bullet is fired and it lodges into a block. Momentum is conserved because there is no net external force. Energy is not conserved because there is friction between the block and bullet. (2) Once the bullet is...

OK, having been researching this of late, I've come to the conclusion it is far more complex than I first thought! So I guess without further ado, I'll jump into explaining my problem... Aim: Having established a set of initial conditions, I would like to be plot the trajectory of a...

Homework Statement A uniform stick d = 1 m long with a total mass of 249 g is suspended vertically from a frictionless pivot at its top end. A wad of putty of mass 29 g is moving horizontally with speed v. It strikes and sticks to the stick at a distance 0.75 m from the pivot. What is the...

Hey guys, I constructed a function that describes the ballistic trajectory of an object with a given velocity and angle. This is what it looks like: y=tan(a)x+gx^2/(2(cos(a)v)^2) 'x' and 'y' are the x- and y-positions of the object in flight. 'v' is the velocity and 'a' the angle in...

which is more accurate in determining the initial speed of the ball ballistic method or trajectory method??

Homework Statement The ballistic pendulum is a block of 3.0 kg mass suspended from a thread 2.5 m long. A bullet with a mass of 9.0 g hits the block and sticks in it, the result being a deflection of the system by an angle of 18o. Homework Equations Find the bullet’s speed. The Attempt...

Homework Statement At 6:52 pm PDT Wednesday, July 10, 1996, a large block of granite with an estimated volume of 78,000 cubic yards detached from the cliff between Washburn Point and Glacier Point in Yosemite Valley. The estimated mass of the granite is 80,000 metric tons...

Hi all, I am interested in working in industry after I graduate, ideally having to do with ballistic missile defense. Does anyone know what are the best paths to get into this field? Are there many opportunities? What is the ideal major? Any info would be helpful. Thanks.

Hey guys, I have some questions about this ballistic pendulum http://image.made-in-china.com/2f1j00nMvTZeBzkLoC/Ballistic-Pendulum.jpg My partner and me were discussing what kind of collision it made. I think it's an elastic since we placed a ball in the rod then pulled...

Homework Statement You have been ask to design a "ballistic spring system" to measure the speed of bullets. A bullet has a mass of m is fired into a block with mass M. The block, with the embedded bullet, then slides across a frictionless table and collides with a horizontal spring whose...

Homework Statement The speed of a rifle bullet may be measured by means of a ballistic pendulum in the following way. The bullet, of known mass m and unknown speed v, embeds itself in a stationary wooden block of mass M, suspended as a pen- dulum of length L. This sets the block to...

Hello all. I need to model the trajectory of a bullet fired from a gun while being subjected to gravity, drag, and a wind vector. It's been 10yrs since my last differential equations course and I can't remember much, except enough to think that they're required to solve this problem...

Hi, For interference to take place, the light wave must retain their coherence. For scattering, when photon particles are scattered/dispersed/deflected, they should lose their phase relationship or coherence, should they be capable of interference? this may sound queer, i know interference...

Homework Statement I did a lab in physics where we used a ballistic pendulum. Basically we had to derive equations for the initial speed of the ball for the pendulum and as a projectile using energy/momentum and kinematics. I was just wondering what are some good sources of error for...

Homework Statement A 2.3 kg wood block hangs from the bottom of a 1.3 kg, 1.3 m long rod. The block and rod form a pendulum that swings on a frictionless pivot at the top end of the rod. A 12 g bullet is fired into the block, where it sticks, causing the pendulum to swing out to a 35 degrees...

Hi frnds... can anybody give me some idea about the"mechanism of balistic conduction." I really need it. pls help me.

Homework Statement A 15.0 g bullet is fired at 456.1 m/s into a solid cylinder of mass 21.1 kg and a radius 0.31 m. The cylinder is initially at rest and is mounted on fixed vertical axis that runs through it's center of mass. The line of motion of the bullet is perpendicular to the axle and...

Homework Statement A 13.0 g bullet is fired at 578.1 m/s into a solid cylinder of mass 24.1 kg and a radius 0.11 m. The cylinder is initially at rest and is mounted on fixed vertical axis that runs through it's center of mass. The line of motion of the bullet is perpendicular to the axle...

Hello, I have been trying to get my head around the concepts of energy, work and momentum. I am trying to build some testing equipment to measure the "transfer of energy" of a moving object striking a pendulum type mass, but am unsure if my physics is correct. The image attached is my idea...

Homework Statement I fire a bullet at a ballistic pendulum. The large block of wood has a mass M2 = 3.000 kg, and the bullet has a mass of m1 = 25.0 g. The bullet completely penetrates the wood and emerges with a speed of vf = 80.0 m/s. The wood, as part of a pendulum, swings up to a maximum...

Homework Statement A soft clay block is suspended so as to form a so-called ballistic pendulum. A bullet is fired point-blank into the block, imbedding itself therein and raising the latter to a height h. Derive an expression for the percentage of the kinetic energy converted into internal...

Homework Statement a bullet of mass M is fired into a block of wood of mass m, the bullet sticks in the wood and causes it to swing upwards by height h calculate the change in kinetic energy from the bullet to the bullet+wood Homework Equations kinetic energy = 1/2MV^2 V = SQRT...

Homework Statement A bullet (mass m, velocity v) is fired into a suspended wooden block (mass M) which then rises up to height h with the bullet embedded within it. Find, in terms of m, M and H, the proportion of the initial kinetic energy of the bullet that is transferred to mechanical...

Homework Statement A 7.0-g bullet is fired into a 1.5-kg ballistic pendulum. The bullet emerges from the block with a speed of 200 m/s, and the block rises to a maximum height of 12 cm. Find the initial speed of the bullet. Homework Equations Conservation of Momentum The Attempt at...

Homework Statement You have been asked to design a "ballistic spring system" to measure the speed of bullets. A spring whose spring constant is k is suspended from the ceiling. A block of mass M hangs from the spring. A bullet of mass m is fired vertically upward into the bottom of the...

Homework Statement Homework Equations mv=(m+M)v' KEi=1/2mv2 PE=KE (after collision) The Attempt at a Solution I'm am particularly stuck on part C although I'm not very confident in my first two answers either. a) 1/2(m+M)vf2=(M+M)gh vf2=2gh vf=SQRT(2gh) mv=(m+M)vf...

Homework Statement How would doing this experiment in the moom effect the experiment ? "the experiment in lunching a ball against a pendulum and making an inelastic collision find the kenitic engergy and the inital velocity" Homework Equations I found all the answers and I assume the...

A trebuchet is a type of catapult that converts the potential energy of a counterweight into the kinetic energy of a projectile. The simplest version operates like a see-saw, with the counterweight suspended from a hanger attached to the short arm and the projectile held in a sling attached to...

Homework Statement A 10.0 g bullet is fired at 452.1 m/s into a solid cylinder of mass 24.1 kg and a radius 0.37 m. The cylinder is initially at rest and is mounted on fixed vertical axis that runs through it's center of mass. The line of motion of the bullet is perpendicular to the axle...

Hey guys, I'm researching single walled carbon nanotubes and I am trying to find out how much approx. Resistance there is in a pile of ~50nm long metallic SWCNT's piled on top of each other to form a line (think laying gunpowder for a fuse...). I'm perplexed because SWCNT's at the proper size...

Homework Statement You have been asked to design a "ballistic spring system" to measure the speed of bullets. A bullet of mass 6.20 g is fired into a block of mass 2.10 kg. The block, with the embedded bullet, then slides across a frictionless table and collides with a horizontal spring...

Homework Statement I don't know if this one belongs to something like the mythbusters, because of the complexity it needs for the actual testing. This is the situation: in my country every week somebody gets hurt because of stray bullets, This is provoked by irresponsible people who tend to...

Homework Statement During a summer internship with a company, you devised the following method of measuring the muzzle speed of a high-powered rifle, as shown in the figure. You fire a bullet into a rod of mass 5.5 kg and length 150 cm that is free to rotate about the pivot at the top. The...

[solved]Ballistic pendulum Homework Statement A bullet of mass m = 0.024 kg is fired with a speed of vi = 97.00 m/s and hits a block of mass M = 2.61 kg supported by two massless strings. The bullet emerges from the right side of the block with a speed of vf = 48.50 m/s. Find the height to...

1. A 9.05- g bullet from a 9-mm pistol has a velocity of 331.0 m/s. It strikes the 0.705- kg block of a ballistic pendulum and passes completely through the block. If the block rises through a distance h = 19.47 cm, what was the velocity of the bullet as it emerged from the block? i know that...

Homework Statement A 16g bullet is fired into the bob of a ballistic pendulum of mass 1.5kg When the bob is at its maximum height, the strings make an angle of 60 degree with the vertical. The length of the pendulum is 2.3 m. Find the speed of the bullet. Homework Equations pi=pf...

I'm currently doing an undergraduate project on Brownian Motion and was told a phenomenon know as ballistic regime (at least I think that's what it's called) could have an effect on my results. My experiment involves analysing tiny beads in liquids undergoing Brownian motion and using them to...

Homework Statement So does anyone here know a lot about ballistic pendulums? I was just wondering how I could calculate the distance the ball will travel horizontally when shot horizontally, from a table. Homework Equations The Attempt at a Solution I know that first, I have to...

The problem: https://tycho-s.phys.washington.edu/cgi/courses/shell/common/showme.pl?courses/phys121/autumn08/homework/06/IE_algebra_ballistic_pendulum_MOM/pic.gif A rifle bullet of mass m = 0.03 kg traveling at vb = 240 m/s collides with and embeds itself in a pendulum of mass M = 2.88...

A. See my questions below. First, here is some information from the book “Black Holes and Time Warps” by Kip Thorne. So far this is the best reference book I can find on the original thinking of black holes. 1. Pg 122 Very compact stars were theorized to occur way back in 1783 by John...

So, I need to find the velocities of two arrows but I don't know what formulas to use. Can anyone point me in the right direction? http://img247.imageshack.us/img247/9376/okjen2.jpg

Homework Statement You have been asked to design a "ballistic spring system" to measure the speed of bullets. A spring whose spring constant is k is suspended from the ceiling. A block of mass M hangs from the spring. A bullet of mass m is fired vertically upward into the bottom of the block...

Homework Statement A 7.0-g bullet is fired into a 1.5-kg ballistic pendulum. The bullet emerges from the block with a speed of 200 m/s, and the block rises to a maximum height of 12 cm. Find the initial speed of the bullet. Now I think this is an imperfect inelastic collision because the...

Homework Statement A bullet (m = 0.029kg) is fired with a speed of 95.00m/s and hits a block (M = 2.40kg) supported by two light strings , stopping quickly. Find the height to which the block rises. The correct answer is 6.56E-02 m BUt the next question is: Find the angle (in...