What are possible causes of error in the ballistic pendulum experiment?

What are possible causes of error in the ballistic pendulum experiment?

The error due to measurement of h is dominant, and the errors due to mass measurements are negligible. However, there are other sources of uncertainty in the firing apparatus, which cause the ball to have different velocity each time the gun is fired.

What two concepts were used when firing the ballistic pendulum to determine the velocity of the projectile?

To verify that energy conservation and momentum conservation can be used with a ballistic pendulum to determine the initial velocity of a projectile, its momentum and kinetic energy.

What is the purpose of the ballistic pendulum lab?

The purpose of this experiment is to measure the velocity of a ball that is fired from a spring gun. For many years, police laboratories used ballistic pendulums to measure the muzzle velocities of firearms. The ballistic pendulum consisted of a large block, suspended by cords.

Is linear momentum conserved in a ballistic pendulum?

The arm of the Beck Ball pendulum, however, is solid, and it is held by a single pivot axle at the top. It is therefore a physical pendulum, and once it begins to swing it has angular momentum. In this pendulum, then, linear momentum is not strictly conserved, but is converted into angular momentum (vide infra).

How does the velocity of the pendulum change as it swings from right to left?

So as the bob moves leftward from position D to E to F to G, the force and acceleration is directed rightward and the velocity decreases as it moves along the arc from D to G. At G – the maximum displacement to the left – the pendulum bob has a velocity of 0 m/s.

Which two principles of physics are applied to find the velocity of the bullet?

Solution: Principle of conservation of mechanical energy, an expression for the bob-bullet combination after collision is derived. Then the principle of conservation of momentum is applied to find the velocity of the bullet before collision.

Is the collision between the ballistic pendulum and the projectile ball elastic or inelastic Why?

On the other hand, in an inelastic collision, momentum is conserved and the two objects stick together after the collision. In the case of the ballistic pendulum, the collision is inelastic because the bullet is embedded in the block.

What part component of the ballistic pendulum pushes a low friction and remains in place allowing an accurate measurement?

PASCO Ballistic Pendulum
Unique Angle Measurement: The PASCO Ballistic Pendulum pushes a low friction, low mass pointer to the highest point. It remains there, permitting an accurate measurement.

Is momentum conserved in a ballistic pendulum?

The ballistic pendulum is a device in which a projectile such as a bullet is fired into a suspended heavy wooden stationary block. Some kinetic energy gets transformed into heat and sound, and some is used to deform the block. However, momentum is conserved.

Why is momentum not conserved in the swing of the pendulum?

Momentum of the pendulum is not conserved, because it is constantly changing during the flight of the pendulum. As you noted, gravity is acting on it.