Conceptual Physics: Ball Thrown Up - Air Drag Force

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In summary, the conversation discusses the question of whether it takes longer for a ball to travel to the top of its motion or to fall back down, taking into account the drag force of air. The solution suggests starting by considering the forces acting on the ball, specifically gravity and drag force, and using Newton's second law to derive equations. A hint is given to compare the acceleration of the ball going up versus going down.
  • #1
stoqnski
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Homework Statement



A Ball is thrown straight up. Taking the drag force of air into account, does it take longer for the ball to travel to the top of its motion or for it to fall back down again?


Homework Equations


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The Attempt at a Solution



Do not know where to start with the question.
 
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  • #2
Start with the forces that will act on the ball; these are "gravity" and "drag" force (likely to be quadratic for your scenario). Use Newton's second law and derive appropriate equations; of course, you probably could find these somewhere.

Does this help at all?
 
  • #3
Hint: Compare the acceleration of the ball going up versus going down.
 

What is conceptual physics?

Conceptual physics is a branch of physics that focuses on understanding the basic concepts and principles of physics, rather than just solving equations and problems. It aims to explain the physical world using everyday language and examples.

What is the ball thrown up-air drag force?

The ball thrown up-air drag force is a force that acts on an object moving through air or any fluid. It is caused by the resistance of the air or fluid to the motion of the object, and it opposes the direction of motion. In the case of a ball being thrown up, the air drag force will act in the opposite direction to the ball's motion, slowing it down and eventually stopping it.

How does air drag force affect the motion of a ball thrown up?

Air drag force affects the motion of a ball thrown up by slowing it down and eventually stopping it. As the ball moves through the air, the air drag force increases with the speed of the ball until it becomes equal to the force of gravity. At this point, the ball will stop moving and start falling back down to the ground.

What factors affect the magnitude of air drag force on a ball thrown up?

The magnitude of air drag force on a ball thrown up is affected by several factors, including the size and shape of the ball, the density and viscosity of the air, the speed of the ball, and the air resistance coefficient of the ball. Generally, larger and more streamlined balls will experience less air drag force than smaller or less aerodynamic balls.

How can air drag force be minimized for a ball thrown up?

To minimize air drag force on a ball thrown up, one can use a smaller and more streamlined ball, throw the ball at a lower speed, or use an air resistance coefficient that is closer to 0. Additionally, throwing the ball in a vacuum or a low-density environment will greatly reduce the air drag force acting on the ball.

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