Calculating Time to Consume Energy from Running Up Stairs

  • Thread starter Thread starter NeomiXD
  • Start date Start date
  • Tags Tags
    Body Power
AI Thread Summary
To determine how long it takes to consume 4.8 MJ of energy while running up stairs, one must calculate the power output of the individual in watts (J/s). Given the work done to run up the stairs and the maximum power exerted, the time can be calculated using the formula: time = energy / power. The discussion emphasizes the need to clarify which values of work and power should be used for accurate calculations. Ultimately, the focus is on simplifying the approach to find the time required to burn off the energy from the potato chips.
NeomiXD
Messages
31
Reaction score
0
A 200 g bag of potato chips contains 4.8 MJ of energy. A person was running up a flight of stairs. How long would it take for the person working at their maximum power to consume this energy? Give your answer in an appropriate unit and be sure to show your work.

I've found Ek, Eg, P, v, average time taken to run flight of stairs and W from answering previous questions for. The distance and the height of the stairs was already given. I'm confused about which given I'm suppose to use. So, I want to know which of the information I found should be used to solving this question (the simplest way possible).
 
Physics news on Phys.org
The energy you need to burn off is 4.8MJ. If you know the work (J/s) exerted from a person running up stairs then how long would it take to exert 4.8MJ of energy.
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »

Similar threads

Calculating Power of a person running up stairs
Replies
1
Views
2K
Finding work of a man running up stairs
Replies
6
Views
5K
How Does Climbing Stairs Compare to Lighting a Bulb in Energy Use?
Replies
9
Views
7K
Calculate Avg Power Output for 75kg Person Walking 100ft in 3min
Replies
9
Views
2K
Graphical method to calculate power
Replies
1
Views
2K
Calculating Work for Climbing Stairs
Replies
1
Views
5K
How Much Power Does a Man Generate Running Up Stairs Compared to a Light Bulb?
Replies
6
Views
3K
Power & Stair Climbing: Reviewing Old Homework
Replies
2
Views
2K
Kinetic Energy and the Power of Human Climbing
Replies
1
Views
3K
Need help with a problem involving work and calories
Replies
1
Views
1K

Hot Threads

Recent Insights

Back
Top