Magnitude of bullet fired into gel

In summary, a rifle bullet with a muzzle speed of 330 m/s is fired into a special dense material, stopping in 25.0 cm. The magnitude of the bullet's deceleration can be found using the equation v^2=u^2 +2as, resulting in a negative acceleration.
  • #1
tcharger130
5
0

Homework Statement


A rifle bullet with a muzzle speed of 330 m/s is fired directly into a special dense material that stops the bullet in 25.0 cm. Assuming the bullet's deceleration to be constant, what is its magnitude?

x=25.0cm
V=330 m/s

Homework Equations



?

The Attempt at a Solution



I don't fully understand the problem, to me it sounds like they want the magnitude of force exerted on the bullet in the opposite direction it was fired? I'm really confused.

Thanks
 
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  • #2
No, they are looking for the magnitude of the bullet's acceleration (deceleration).
 
  • #3
The initial speed, u, is 330m/s, the final speed, v is 0 m/s since the bullet comes to rest. The bullet travels a distance, s of 0.25m.

The equation of motion v^2=u^2 +2as should be of help.

Note that this will give you a negative acceleration which is to be expected as it is opposing the direction of motion.
 

What is the significance of measuring the magnitude of a bullet fired into gel?

The magnitude of a bullet fired into gel is an important aspect of understanding the effects of bullet impact on the human body. It helps to determine the potential damage and penetration of the bullet, which can provide valuable information in forensic investigations and improving bulletproof materials.

How is the magnitude of a bullet's impact on gel measured?

The magnitude of a bullet's impact on gel is commonly measured using a ballistic pendulum, which is a device that measures the momentum of a projectile by measuring the amount of displacement of the pendulum caused by the projectile's impact.

What factors can affect the magnitude of a bullet's impact on gel?

The magnitude of a bullet's impact on gel can be affected by various factors such as the velocity, mass, shape, and composition of the bullet, as well as the density and thickness of the gel. The distance between the gun and the gel, as well as the angle of impact, can also play a role.

What is the relationship between the magnitude of a bullet's impact on gel and its stopping power?

The magnitude of a bullet's impact on gel is directly related to its stopping power. A bullet with a higher magnitude of impact will have more stopping power, meaning it is more likely to cause damage and penetrate deeper into a target.

How is the data from measuring the magnitude of a bullet's impact on gel used in research and development?

The data obtained from measuring the magnitude of a bullet's impact on gel can be used in various research and development fields, including ballistics, forensics, and material science. It can help in developing more effective bulletproof materials and understanding the effects of bullet impact on the human body.

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