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The force exerted on the bullet and the recoil force against the rifleman, are equal to each other (for every action there is an equal and opposite reaction). The bullet has a very small mass, and the rifle/rifleman possess a large mass, force is equal to one half mass times velocity squared, F=m/2*v^2. So velocity of the bullet is the square root of twice force divided by mass, small mass equals large velocity. Another way of looking at this problem is to invoke the law of the conservation of momentum: mass(bullet)*muzzle_velocity(bullet) = mass(rifle)*recoil_velocity(rifle). This is an approximation that neglects the momentum carried away the propellant (both spent and unburned) that exits the muzzle after the bullet.
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When a rifle fires it accelerates a bullet along the barrel Explain why the rifle must recoil?
For every action, there is an equal and opposite reaction. Now the bullet is light (low mass) so when a certain amount of force pushes the bullet forward and the gun backward at the same time, the bullet moves fast. The gun is heavy (great mass) so it is slower to accellerate rearward. It will never reach even a small fraction of the velocity of the bullet. But since force = mass times velocity squared, there is an equal amount of energy in the bullet and the butt stock of the rifle.
When a bullet is fired from a rifle?
When a bullet is fired from a rifle, a chemical reaction in the gunpowder ignites, rapidly expanding gases build up pressure, and the bullet is propelled out of the barrel at high speed. The rifling in the barrel causes the bullet to spin, improving accuracy and stability. Gravity will eventually cause the bullet to drop due to gravity and air resistance.
Who invented the hypodermic needle media theory?
The hypodermic needle media theory, also known as the magic bullet or bullet theory, was developed in the 1920s and 1930s by researchers such as Harold Lasswell and Paul Lazarsfeld. The theory suggests that media messages are directly and uniformly injected into the minds of passive audiences, shaping their attitudes and behaviors.
How can you decorate your assignment?
You can decorate your assignment by using headings, bullet points, numbering, bold or italic text, colored text, relevant images or charts, and a consistent font style to make it visually appealing and easy to read. Be sure to follow any guidelines provided by your instructor.
What organizational methods work for cause and effect?
Organizational methods that work well for cause and effect include using a flowchart to visually map out the relationships between causes and effects, creating a timeline or sequence of events to show the chain of causation, and using bullet points or lists to clearly outline each cause and its corresponding effect. Additionally, using signal words such as "because," "since," "as a result," or "therefore" can help connect causes and effects in writing.
When a rifle fires it accelerates a bullet along the barrel Explain why the rifle must recoil?
For every action, there is an equal and opposite reaction. Now the bullet is light (low mass) so when a certain amount of force pushes the bullet forward and the gun backward at the same time, the bullet moves fast. The gun is heavy (great mass) so it is slower to accellerate rearward. It will never reach even a small fraction of the velocity of the bullet. But since force = mass times velocity squared, there is an equal amount of energy in the bullet and the butt stock of the rifle.
How can calculate recoil velocity of gun?
The recoil velocity of a gun can be calculated using the principle of conservation of momentum. The formula to calculate the recoil velocity is: Recoil velocity = (mass of bullet * velocity of bullet) / mass of gun. This formula takes into account the mass of the bullet, the velocity of the bullet, and the mass of the gun.
What is the Difference between muzzle velocity and recoil velocity?
Muzzle velocity is the velocity of a bullet as it leaves the firearm's barrel, while recoil velocity is the backward momentum that the firearm experiences when the bullet is fired. Muzzle velocity determines the bullet's speed and trajectory, while recoil velocity affects the shooter's ability to control the firearm during and after firing.
What instrument is used to measure the speed of a bullet?
A chronograph is typically used to measure the speed of a bullet. This device calculates the bullet's velocity by timing how long it takes to pass through two sensors placed a known distance apart. The speed is then calculated based on this elapsed time.
When a 3.8 kg rifle fires a 13 gram bullet it experiences a recoil velocity of 2.4ms-1Calculate the velocity of the bullet?
Before the shot, total momentum of the rifle/bullet system is zero. Momentum is conserved, so must total zero after the shot. Magnitude of momentum = m V (mass, speed); we'll take care of direction independently. Momentum of the rifle: m V = (3.8) x (2.4) = 9.12 kg-m/sec backwards. We need momentum of the bullet = 9.12 kg-m/sec forward m V = 9.12 ===> V = ( 9.12 / m ) = ( 9.12 / 0.013 ) = 701.54 m/s forward
Define trAjectory of the bullet velocity of the bullet velocity?
Bullet trajectory is the path the bullet travels once it leaves the barrel. Bullets travel on a long arch and cross the line of sight twice. Once shortly after leaving the barrel and once again on target assuming the sights are properly zeroed. This is the trajectory of the bullet. Bullet velocity is the speed at which the bullet is traveling along it's trajectory.
How does a bullet fired from a gun have ahigh momentum?
Momentum = mass x velocity A bullet has a high momentum because its velocity is really high.
What is the recoil velocity of the pistol when a bullet of mass 20g is fired with a velocity 150ms from a pistol of mass 2kg?
Momentum before = momentum after. Since there was no movement before, momentum before = 0 If you think of the bullet as forward/positive momentum and the gun as backward/negative momentum then the momentum of the bullet plus the momentum of the gun =0 and therefore the momentum of the bullet = the momentum if the gun. momentum = mass x velocity P=m/v 20gx150m/s = 2000g (2kg) x velocity 3000 = 2000v 3000 / 2000 = v v = 1.5m/s
What is the terminal velocity of a bullet and how does it affect its trajectory and impact force?
The terminal velocity of a bullet is the maximum speed it can reach when falling through the air. This speed varies depending on the size and weight of the bullet. When a bullet reaches its terminal velocity, it will no longer accelerate and will fall at a constant speed. The terminal velocity of a bullet can affect its trajectory and impact force in several ways. A higher terminal velocity means the bullet will hit the target with more force, potentially causing more damage. Additionally, the trajectory of the bullet may be affected by air resistance at higher speeds, causing it to deviate from its intended path. Overall, the terminal velocity of a bullet plays a significant role in determining its impact on a target.
How reduce velocity of bullet in air?
To reduce the velocity of a bullet in air, you can increase the drag force acting on the bullet by using a heavier or more aerodynamically shaped bullet, or by increasing the air density (e.g., shooting at higher altitudes). Additionally, you can decrease the initial muzzle velocity of the bullet by using a lower-powered cartridge or firearm.
What goes forward but never back?
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Can bullet proof glass withstand a 1000 fps bullet?
It depends on the thickness of the glass and the muzzle energy of the bullet, not just the velocity.
