Package A Races Down the Ramp: How Long Does it Take?

  • Thread starter mags
  • Start date
  • Tags
    Ramp
In summary, two packages with different masses and coefficients of friction start sliding down a 20 degree ramp at UPS. The question asks how long it takes for package A, with a mass of 5.0kg and a coefficient of friction of 0.20, to reach the bottom. Using the given information and the formulae for acceleration, the time required for package A to travel the length of the ramp can be calculated.
  • #1
mags
5
0
Two packages at UPS start sliding down the 20 degree ramp.Package A has a mass of 5.0kg and a coefficient of friction of 0.20. Package B has a mass of 10 kg and a coefficient of 0.15. how long does it take package A to reach the bottom?

http://img362.imageshack.us/my.php?image=knightfigure0825pe6.jpg
 
Physics news on Phys.org
  • #2
The question isn't very clear; does package B push on package A and help it accelerate?
 
  • #3
that's all I'm given...
 
  • #4
tan(20) =0.36 > 0.2, so the sliding that just started will continue.
So resolve the mass into a normal and a downward (along the slide) component.
Subtract the frictional force will give you the downward force.
Dividing the force by the mass gives the acceleration.
Use the usual formulae for acceleration as a function of distance and speed to find the time required to travel the down ramp of length L.
 

Related to Package A Races Down the Ramp: How Long Does it Take?

1. What is "Package A Races Down the Ramp"?

"Package A Races Down the Ramp" is a scientific experiment where a package is released at the top of a ramp and allowed to roll down, measuring how long it takes to reach the bottom.

2. How is the experiment conducted?

The experiment is conducted by setting up a ramp at a specific angle and releasing a package at the top. A timer is used to measure the time it takes for the package to reach the bottom of the ramp.

3. What type of package is used in the experiment?

The type of package used in the experiment can vary, but it should be a small, solid object that can easily roll down the ramp, such as a toy car or a small ball.

4. What factors can affect the results of the experiment?

The results of the experiment can be affected by the angle and material of the ramp, the weight and shape of the package, and air resistance. Other factors such as surface friction and imperfections in the ramp can also affect the results.

5. How is the data collected and analyzed?

The data is collected by measuring the time it takes for the package to reach the bottom of the ramp multiple times and calculating the average time. The data can then be analyzed to determine the relationship between the angle of the ramp and the time it takes for the package to reach the bottom.

Similar threads

  • Introductory Physics Homework Help
Replies
18
Views
2K
  • Introductory Physics Homework Help
Replies
32
Views
2K
  • Introductory Physics Homework Help
Replies
4
Views
8K
  • Introductory Physics Homework Help
Replies
6
Views
1K
  • Introductory Physics Homework Help
Replies
6
Views
1K
  • Introductory Physics Homework Help
Replies
10
Views
8K
  • Introductory Physics Homework Help
Replies
11
Views
2K
  • Introductory Physics Homework Help
Replies
4
Views
3K
  • Introductory Physics Homework Help
Replies
7
Views
10K
  • Introductory Physics Homework Help
Replies
4
Views
1K
Back
Top