Ballistic Pendulum

The video tutorial explains the concept of a ballistic pendulum, a tool used to calculate the speed of a projectile. It demonstrates a physics problem involving a blow dart and a wood block, highlighting the principles of momentum and energy conservation. The tutorial guides through setting up the problem, analyzing the collision, and solving for the dart's velocity using equations. It concludes with a practical demonstration and verification of the theoretical calculations.

What is the primary purpose of a ballistic pendulum?

• To measure the angle of a projectile

• To determine the mass of a projectile

• To calculate the speed of a projectile

• To measure the height of a projectile

In the demonstration, what type of collision occurs between the dart and the wood block?

• Inelastic collision

• Perfectly elastic collision

• Elastic collision

• Perfectly inelastic collision

What is the initial velocity of the wood block before the collision?

• Equal to the dart's velocity

• Zero

• Half of the dart's velocity

• Double the dart's velocity

Which physics principle is used to analyze the collision event?

• Conservation of linear momentum

• Conservation of angular momentum

• Conservation of energy

• Newton's second law

During the pendulum motion, which type of energy is conserved?

• Chemical energy

• Mechanical energy

• Thermal energy

• Kinetic energy

What happens to the height of the dart and wood block if the dart's initial velocity is increased?

• The height decreases

• The height remains the same

• The height increases

• The height becomes zero

If the velocity of the dart is increased, how should the mass of the wood block change to keep the height constant?

• Double the mass of the wood block

• Increase the mass of the wood block

• Decrease the mass of the wood block

• Keep the mass of the wood block constant

What is the calculated velocity of the dart before the collision using the given data?

• 28.363 m/s

• 25.000 m/s

• 32.000 m/s

• 30.512 m/s

What is the relative error between the measured and predicted velocities of the dart?

• 0.53%

• 1.00%

• 2.00%

• 0.75%

What conclusion can be drawn from the comparison of measured and calculated velocities?

• The velocities are identical

• The velocities are unrelated

• The physics model is accurate

• The physics model is inaccurate