Unlocking the Mystery of Ball Bearing: Height, Velocity and Position

In summary, the conversation discusses the process of making ball bearings and the questions surrounding it, such as the height of the tower needed to solidify the bearings and the mathematical relationships that describe the bearings' velocity, acceleration, and position over time. The conversation also reveals the speaker's lack of knowledge in the subject and their plan to research and seek help.
  • #1
ur5pointos2sl
96
0
The question states:
Ball bearing are made by letting spherical drops of molten metal fall inside a tall tower, and they solidify as they fall.

a) If a bearing needs 4.0s to solidify, how high must the tower be?
b) What is the bearing velocity when it reaches the bottom?
c) What mathematical relationship describes the ball's velocity vs time? Acceleration?
d) What mathematical relationship describes the ball's position vs. time?

I wasnt given any formulas and have never taken physics and have no idea where to start this. Any help to get started would be appreciated. Thanks
 
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  • #2
You have to look up the subject of kinematics of an object with constant acceleration. Stuff like y(t)=y0+vy0*t+(1/2)*g*t^2, vy(t)=vy0+g*t. Why are they giving you a question like this if you have no exposure to the subject?
 
  • #3
Dick said:
You have to look up the subject of kinematics of an object with constant acceleration. Stuff like y(t)=y0+vy0*t+(1/2)*g*t^2, vy(t)=vy0+g*t. Why are they giving you a question like this if you have no exposure to the subject?

Intro Engineering Class. Our professor expects us to just know all of this stuff for some reason. I will look that up and see what I can find out. Thanks
 
  • #4
ur5pointos2sl said:
Intro Engineering Class. Our professor expects us to just know all of this stuff for some reason. I will look that up and see what I can find out. Thanks

Good luck. It shouldn't be too hard to find, any elementary physics book should do. Once you know enough to try to start, let us know if there are any problems.
 

1. What is a ball bearing?

A ball bearing is a type of rolling element bearing that uses balls to maintain separation between moving parts. It reduces friction between the rotating shaft and the stationary parts of a machine.

2. How do ball bearings work?

Ball bearings work by reducing friction between the moving parts of a machine. The balls in the bearing allow for smooth rotation of the shaft by rolling instead of sliding. This reduces the amount of friction and wear on the parts, making the machine more efficient and durable.

3. What factors affect the performance of ball bearings?

The performance of ball bearings can be affected by various factors such as the type and quality of the balls and the material used for the bearing, the lubrication used, the load and speed of the machine, and the environmental conditions.

4. How does the height, velocity, and position of a ball bearing affect its performance?

The height, velocity, and position of a ball bearing can affect its performance in several ways. A higher height can increase the load capacity of the bearing, while a higher velocity can affect the wear and friction of the bearing. The position of the bearing can also impact its performance, as misalignment can cause uneven wear and premature failure.

5. What are some common applications of ball bearings?

Ball bearings have a wide range of applications in various industries such as automotive, aerospace, manufacturing, and medical. They are commonly used in machines that require smooth and efficient rotation, such as engines, gearboxes, and conveyor systems.

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