Understanding Thrust and Impulse

What is the total momentum of a 4 kg cannonball fired at 100 m/s?

• 400 kg m/s

• 200 kg m/s

• 100 kg m/s

• 50 kg m/s

If a cannon fires two 2 kg cannonballs consecutively, what is the total impulse imparted?

• 800 kg m/s

• 200 kg m/s

• 400 kg m/s

• 600 kg m/s

How does the total impulse change when firing four 1 kg cannonballs compared to one 4 kg cannonball?

• It halves

• It doubles

• It quadruples

• It remains the same

What does the area under a force versus time graph represent?

• Mass

• Acceleration

• Impulse

• Velocity

In the context of the video, what is the significance of a constant force?

• It indicates a variable impulse

• It results in a constant velocity

• It simplifies the calculation of impulse

• It means no impulse is generated

What is the term for mass per unit time in the context of thrust?

• Mass flow rate

• Thrust rate

• Mass velocity

• Impulse rate

How is thrust related to mass flow rate and velocity?

• Thrust is the difference between mass flow rate and velocity

• Thrust is the ratio of mass flow rate to velocity

• Thrust is the sum of mass flow rate and velocity

• Thrust is the product of mass flow rate and velocity

What happens to the cannon when a force is applied to the gas or cannonballs?

• It remains stationary

• It moves in the same direction as the gas

• It moves in a random direction

• It experiences an equal and opposite force

What concept explains the movement of the cannon in the opposite direction of the fired cannonballs?

• Law of Conservation of Energy

• Newton's Third Law

• Newton's Second Law

• Newton's First Law

What transformation occurs when the cannon is turned into a rocket sled?

• It loses all its mass

• It converts into a projectile

• It becomes a stationary object

• It acts as a continuous thrust generator