**because it is moving very quickly**. Bullets are therefore difficult to stop; it’s a good idea not to try!

Why does a small difference in economic growth?

**why does a small difference in economic growth result in a large difference in wealth over time?**.

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The momentum imparted to the bullet by the gun is **what makes a gun able to do so much damage**. The momentum of an object equals its mass times its velocity. The momentum of an object, and therefore its ability to cause destruction, can be increased by making the object more massive or by making it go faster.

If you increase either mass or velocity, the momentum of **the object increases proportionally**. If you double the mass or velocity you double the momentum.

A bullet **before it is fired has a lot of potential energy**, after it is fired it has a lot of kinetic energy. When it hits a target that kinetic energy is transferred to the target as more kinetic energy. Some energy is also lost to the surroundings as sound and heat.

The total momentum of the bullet and the gun before the firing is **zero** because both are at rest.

A tiny bullet can have more momentum than a huge truck. … A moving car has momentum. If it moves twice as fast, its momentum is TWICE as much.

In a collision, an object experiences **a force for a specific amount of time** that results in a change in momentum. The result of the force acting for the given amount of time is that the object’s mass either speeds up or slows down (or changes direction).

If the net force acting on an object is zero, then the linear momentum is constant. In an elastic collision (such as a superball hitting and rebounding from the ground), **no kinetic energy is lost**. … The object would then have less energy when it rebounded, so the KE and momentum would be less.

Muzzle energy is the **kinetic energy** of a bullet as it is expelled from the muzzle of a firearm. Without consideration of factors such as aerodynamics and gravity for the sake of comparison, muzzle energy is used as a rough indication of the destructive potential of a given firearm or cartridge.

With this, I can calculate the kinetic energy of one bullet. That’s almost **2000 Joules**. If you move a textbook from the floor to a table, that takes about 10 Joules of energy.

**Kinetic energy** is obtained from motion. So, a moving bullet has kinetic energy. Moreover, kinetic energy is a type of mechanical energy.

Final velocity, v = 0. Distance, s = 2cm = 0.02 m. (ii) Final momentum = **mv = (0.05) (0) = 0 kg m/s**.

The gun and the bullet are both at rest, so the momenta (mv) of the gun and the bullet are both **zero**. So, the total momentum of the system before the bullet is fired is zero.

Momentum is **transferred from the first object to the second object**. In this case, if a gun exerts a force on a bullet when firing it forward then the bullet will exert an equal force in the opposite direction on the gun causing it to move backwards or recoil.

The huge ship moves at less than 50 mph, the bullet would have to be propelled at millions of times that velocity to have the same momentum as the ship.

Momentum can be defined as “**mass in motion**.” All objects have mass; so if an object is moving, then it has momentum – it has its mass in motion. … In terms of an equation, the momentum of an object is equal to the mass of the object times the velocity of the object.

Yes, for a **bullet** to have the same momentum as a truck, it must have a higher velocity because the two masses are not the same. ANSWER: Yes, for a bullet to have the same momentum as a truck, it must have a higher velocity because the two masses are not the same.

How can a small force produce a large change in momentum? A small force acting on an object for a long time can produce a large change in momentum. … **The momentum of the large ball decreases and the momentum of the small ball increases**.

The Momentum Calculator uses the formula **p=mv**, or momentum (p) is equal to mass (m) times velocity (v).

Two objects of different mass are moving at the same speed; **the more massive object** will have the greatest momentum. A less massive object can never have more momentum than a more massive object. Two identical objects are moving in opposite directions at the same speed.

The momentum of the block/bullet system is conserved. Therefore, the momentum before the collision is **the same as the momentum after the collision**.

5. **A karate expert can generate enough speed with his fist that the momentum can carry through several bricks breaking them**. 6. Two football players of equal mass are traveling towards each other, one is moving at 5 m/sec and the other at 8 m/sec.

- A train moving at 120 km/h.
- A baseball flying through the air.
- A heavy truck moving.
- A bullet fired from a gun.
- When you throw a ball at someone and it hits him hard. It is an indication of how hard it would be to stop the object.

So essentially a bullet carries a kinetic energy potential measured in the Foot/LBs in the English metric. A . 50 BMG machine gun fires a 650 gr projectile at around 3000 fps. This translates to roughly **16000 pound of force** at the muzzle.

When bullets fly through the air, they do so at amazing speeds. The fastest bullets travel more than 2,600 feet per second. That’s equivalent to **over 1,800 miles per hour**. To put that in perspective, it’s amazing to realize that bullets travel over twice the speed of sound!

What it means is that the round generates **400 pounds of force** when striking a solid object. Again a human body cant stop the 9mm at 10 feet on impact. The term footpounds means that it takes X amount of energy to move X amount of pounds a foot into the air.

FirearmCaliberMuzzle energyjoulesair gun PCP.22**40+**pistol.22LR159pistol9 mm519

The energy necessary for the resultant fractures was found to be between 80 and 100 Joules (J), an energy range far above the fracture threshold of the human skull of **14.1 to 68.5 J**.

When a bullet is fired from a gun, its potential energy is converted into **kinetic energy**. When a bullet fired the chemical energy is in form of potential energy is converted in kinetic energy and heat thereby moving bullet out of the barrel. The sum of potential and Kinetic energy is known as Mechanical energy.

A bullet stores **chemical potential energy** in its gunpowder. When the bullet is fired, this chemical energy is converted into kinetic energy and heat.

After throwing the body vertically upward its kinetic energy goes on increasing while potential energy decreases. At the highest point, **kinetic energy becomes zero** and potential energy is maximum and again the same cycle repeats.

A bullet fired is a normal projectile. In its upward journey it gains **potential energy** and losses kinetic energy and vice versa in down ward motion.

The bullet is the only object with initial velocity, to the initial momentum of the bullet-block system is: **p = mv = 25**. Once the bullet embeds itself in the block, the block and bullet must have the same momentum of 25. Thus: v = p/m = 25/4.05 = 6.17 m/s.

Typical of ball-bat collisions, the bat momentum **dominates** and the ball flies off in the opposite direction from which it came. If we increase the bat weight to 25 oz. and swing it at the same speed, then we get a substantial increase in bat momentum that results in higher ball exit velocity.

Momentum is defined as the mass of an object times its velocity. … In a similar manner, a rocket moves in space because the gases are given momentum as they are expelled by the rocket engine. Consider the rocket resting in space. **There is no momentum in the system**.

The sum of momentum before firing bullet is **zero**. mu1+Mu2=0If v1 and v2 are the final velcoities of bullet and gun receptively after firing. Total momentum before recoil = Total momentum after recoil.

When a bullet is fired from a gun, **the gun exerts a force on the bullet in the forward direction**. This is force is called as the action force. The bullet also exerts an equal and opposite force on the gun in the backward direction. Therefore a gun recoils when a bullet is fired from it.

Linear momentum (momentum for brevity) is defined as the product of a system’s mass multiplied by its velocity. In symbols, linear momentum p is defined to be **p = mv**, where m is the mass of the system and v is its velocity. The SI unit for momentum is kg · m/s.

A bullet **before it is fired has a lot of potential energy**, after it is fired it has a lot of kinetic energy. When it hits a target that kinetic energy is transferred to the target as more kinetic energy. Some energy is also lost to the surroundings as sound and heat.

Answer: Because **if the bullet was heavy the gun’s spring would not be able to shoot the bullet out with power**.