How high did the vaulter jump?

In summary, a 50 kg pole vaulter running at 9.5 m/s vaults over the bar with a horizontal component of velocity of 1.3 m/s. Friction causes 200 J of energy loss. The equation used for the solution is K1+U1= K2+U2+Wf, and the attempted solution involves substituting known parameters and solving for the unknown height jumped.
  • #1
dstew1019
1
0

Homework Statement



A 50 kg pole vaulter running at 9.5 m/s vaults over the bar. If the vaulter's horizontal component of velocity over the bar is 1.3 m/s, and 200 J of energy is lost due to the friction in the pole, how high did the vaulter jump?

Homework Equations


K1+U1= K2+U2+Wf


The Attempt at a Solution


1/2mvi^2= 1/2mvf^2+mgh+Wf
 
Physics news on Phys.org
  • #2
Okay it doesn't look like much of an attempt at a solution, haha...

List your parameters first, take it small steps at a time...
Once you've listed what known parameters you have substitute it into your relevant equation as stated at you attempt at a solution. Do that and let's work from there...
 

What is conservation of energy?

Conservation of energy is a fundamental law of physics which states that energy cannot be created nor destroyed, but can only be transferred or converted from one form to another.

Why is conservation of energy important?

Conservation of energy is important because it allows us to predict and understand how energy behaves in different systems. It also helps us to find more efficient and sustainable ways to use energy, which is crucial for the future of our planet.

How is energy conserved?

Energy is conserved through the principle of conservation of mass-energy, which states that the total amount of energy in a closed system remains constant. This means that energy can be transformed from one form to another, but cannot be created or destroyed.

What are some examples of energy conservation?

Some examples of energy conservation include turning off lights when leaving a room, using public transportation instead of driving a car, and insulating buildings to reduce the need for heating and cooling. These actions help to reduce energy consumption and preserve our natural resources.

How does conservation of energy relate to the environment?

Conservation of energy is closely related to the environment because the use of energy often results in negative impacts on the environment. By conserving energy, we can reduce these negative impacts and help to protect the planet for future generations.

Similar threads

  • Introductory Physics Homework Help
Replies
26
Views
3K
  • Introductory Physics Homework Help
2
Replies
40
Views
3K
  • Introductory Physics Homework Help
Replies
21
Views
3K
  • Introductory Physics Homework Help
Replies
10
Views
4K
  • Introductory Physics Homework Help
Replies
5
Views
3K
  • Introductory Physics Homework Help
Replies
3
Views
921
  • Introductory Physics Homework Help
Replies
7
Views
3K
  • Introductory Physics Homework Help
Replies
8
Views
1K
  • Introductory Physics Homework Help
Replies
2
Views
2K
  • Introductory Physics Homework Help
Replies
1
Views
2K
Back
Top