Which Quality Does a Fired Cannonball Lack?

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In summary, the problem statement is regarding the qualities that a high speed cannonball possesses immediately after being fired from a cannon. The related equations and an attempt at solution are also discussed. It is determined that the cannonball has all the qualities, including mass, force, momentum, and kinetic energy, while moving. Momentum occurs when a 2-part system's internal forces act upon each other or collide, and external forces, such as gravity and air resistance, can also act on the ball. It is not possible to have kinetic energy without momentum.
  • #1
freshcoast
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1
1. Problem statement
Immediately after being fired from a cannon, a high speed cannonball does not posses..

a) mass
b) force
c) momentum
d) kinetic energy
e) but, it has all these qualities while moving!

2. Related equations

3. Attempt at solution
I'm thinking the cannon ball does not possesses momentum since there are external forces acting upon the object and if we are just looking at the ball by itself, it is not part of a 2-part system which is needed to have momentum.

Or if that's wrong I think it must have all the qualities because the ball has mass, force came from the cannon thus giving it momentum and it also possesses kinetic energy since the object is moving
 
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  • #2
What IS momentum?

And what force acts on the canonball after it has left the barrel?
 
  • #3
Momentum occurs when a 2-part system's internal forces act upon each other or collide

And the external forces that are acting on the ball after it leaves the cannon would be gravity
 
  • #4
freshcoast said:
Momentum occurs when a 2-part system's internal forces act upon each other or collide
Really?
What does your textbook define momentum to be?
 
  • #5
momentum is by Google definition, the quantity of motion of a moving body , measured as a product of its mass and velocity

So does that mean anything that is moving has momentum? Isn't it possible to not have momentum but have kinetic energy?
 
  • #6
freshcoast said:
momentum is by Google definition, the quantity of motion of a moving body , measured as a product of its mass and velocity

So does that mean anything that is moving has momentum? Isn't it possible to not have momentum but have kinetic energy?
"So does that mean anything that is moving has momentum"
Yes.
"Isn't it possible to not have momentum but have kinetic energy?"
No.
 
  • #7
freshcoast said:
And the external forces that are acting on the ball after it leaves the cannon would be gravity

What about the air? Does it act on the ball in any way?
 
  • #8
Air resistance would be a force acting the opposite direction of the cannonball and would cause it to slow down
 

Related to Which Quality Does a Fired Cannonball Lack?

1. What is the cannonball conceptual question?

The cannonball conceptual question is a thought experiment that explores the concept of projectile motion and the factors that affect it. It involves a cannon firing a projectile at different angles and velocities to understand how they impact the trajectory and range of the cannonball.

2. What is the purpose of the cannonball conceptual question?

The purpose of the cannonball conceptual question is to help individuals gain a better understanding of the principles of projectile motion and how different variables can affect it. It also encourages critical thinking and problem-solving skills by asking individuals to consider the outcomes of different scenarios.

3. What are the key variables in the cannonball conceptual question?

The key variables in the cannonball conceptual question include the angle of the cannon, the initial velocity of the cannonball, the force of gravity, and the air resistance. These variables can be altered to explore their impact on the trajectory and range of the cannonball.

4. How does air resistance affect the cannonball in the conceptual question?

Air resistance, also known as drag, is a force that opposes the motion of the cannonball. It can vary depending on the shape and size of the cannonball, as well as the density of the air. As the cannonball travels through the air, it experiences a drag force that can decrease its overall range and affect its trajectory.

5. What real-world applications does the cannonball conceptual question have?

The cannonball conceptual question has real-world applications in fields such as physics, engineering, and ballistics. It can also be used to understand and predict the trajectory of objects in sports, such as baseballs or golf balls. Additionally, it can help in the design and development of projectiles for military and defense purposes.

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