Calculating effects of air resistance on a falling mass

In summary, the conversation discusses the calculation of the effects of air resistance on a ball of mass 0.67kg being dropped from a height of 4.93m. The speaker mentions working out the time it would take without air resistance using a theoretical equation, but is unable to find an equation that includes air resistance. They then express interest in a lecture that covers this topic.
  • #1
Steph191290
30
0
Calculating effects of air resistance on a ball of mass 0.67kg, being dropped from a height of 4.93m.

I have worked out theoretically what time it would take without air resistance using
s=ut + 0.5at(squared) however i cannot find an equation that will factor in air resistance.

thanks
 
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  • #2
Steph191290 said:
Calculating effects of air resistance on a ball of mass 0.67kg, being dropped from a height of 4.93m.

I have worked out theoretically what time it would take without air resistance using
s=ut + 0.5at(squared) however i cannot find an equation that will factor in air resistance.

thanks

Here's a lecture that covers what you are interested in.

https://www.youtube.com/watch?v=9lvNofoUYwI
 
  • #3
thanks that will be great
 

1. How does air resistance affect the speed of a falling object?

Air resistance, also known as drag, acts in the opposite direction of an object's motion. As an object falls, it experiences a force of air resistance that increases as its speed increases. This ultimately leads to a decrease in the object's speed as it falls.

2. What factors influence the amount of air resistance on a falling object?

The amount of air resistance on a falling object is influenced by several factors, including the object's surface area, shape, and speed. Objects with larger surface areas (such as parachutes) and irregular shapes experience more air resistance than objects with smaller surface areas and streamlined shapes.

3. How is air resistance calculated?

Air resistance can be calculated using the formula Fd = ½ρv²C, where Fd is the force of drag, ρ is the density of air, v is the speed of the object, and C is the drag coefficient. The drag coefficient takes into account the shape and surface properties of the object.

4. Does air resistance affect the acceleration of a falling object?

Yes, air resistance affects the acceleration of a falling object. As an object falls, the force of air resistance increases, which leads to a decrease in the object's acceleration. This means that the object's speed increases at a slower rate as it falls.

5. Can air resistance be completely eliminated?

No, air resistance cannot be completely eliminated. However, it can be reduced by changing the shape or surface properties of the object. For example, streamlining an object or using a smooth surface can reduce the effects of air resistance on a falling object.

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