Dart with Thin Rod Collision - Conservation of Angular Momentum Demonstration and Problem

The video tutorial explains a physics problem involving a dart colliding with a piece of cardboard. It covers the conversion of variables to SI units, the conservation of angular momentum during the collision, and the conservation of mechanical energy as the cardboard rises. The tutorial provides a step-by-step solution, including calculations and trigonometric relationships, to predict the maximum angle the cardboard reaches after the collision.

What is the mass of the dart in kilograms?

• 53 kg

• 0.0053 kg

• 5.3 kg

• 0.053 kg

What is the rotational inertia of the cardboard?

• 0.27504 kg*m^2

• 0.0027504 kg*m^2

• 0.027504 kg*m^2

• 0.00027504 kg*m^2

What is the length of the cardboard in meters?

• 33.9 meters

• 0.0339 meters

• 3.39 meters

• 0.339 meters

Why is angular momentum conserved in the dart-cardboard system?

• Because the cardboard is fixed

• Because the dart is moving in a straight line

• Because the system is isolated

• Because there is no net torque acting on the system

Which equation is used to calculate the angular momentum of a point particle?

• R * mass * velocity * sin(angle)

• mass * gravity * height

• 1/2 * mass * velocity^2

• mass * velocity^2

What is the initial angular velocity of the system for Part 2?

• 7.87517 radians per second

• 16.5 meters per second

• 0.287 radians per second

• 0.0053 radians per second

What type of energy is conserved when the dart and cardboard rise together?

• Chemical energy

• Nuclear energy

• Thermal energy

• Mechanical energy

What is the predicted maximum angle the cardboard reaches?

• 44 degrees

• 48 degrees

• 46 degrees

• 50 degrees

What is the measured final angle of the cardboard?

• 46 degrees

• 48 degrees

• 50 degrees

• 44 degrees

What is the percentage difference between the predicted and measured angles?

• 4.5%

• 3.5%

• 5.5%

• 6.5%