Calculating Time to Consume Energy from Running Up Stairs

  • Thread starter Thread starter NeomiXD
  • Start date Start date
  • Tags Tags
    Body Power
Click For Summary
SUMMARY

The discussion focuses on calculating the time required for a person to consume 4.8 MJ of energy from a 200 g bag of potato chips while running up stairs. The key variables include the power output (P) of the individual and the work done (W) in joules per second (J/s). To determine the time taken, one must use the formula time = energy / power. The user seeks clarification on which parameters to utilize for the calculation, emphasizing the need for a straightforward approach to solving the problem.

PREREQUISITES
  • Understanding of basic physics concepts such as work (W) and power (P).
  • Familiarity with energy units, specifically megajoules (MJ) and joules (J).
  • Knowledge of kinematic equations related to motion, particularly in vertical movement.
  • Ability to perform unit conversions and calculations involving energy consumption.
NEXT STEPS
  • Research the relationship between power output and energy consumption in physical activities.
  • Learn how to calculate work done in vertical motion using gravitational potential energy.
  • Explore the concept of metabolic equivalents (METs) for estimating energy expenditure during exercise.
  • Investigate the average power output of individuals during high-intensity activities like running.
USEFUL FOR

This discussion is beneficial for fitness enthusiasts, exercise physiologists, and anyone interested in understanding energy expenditure during physical activities, particularly in relation to running and stair climbing.

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.
 

Similar threads

Calculating Power of a person running up stairs
  • · Replies 1 ·
Replies
1
Views
3K
Finding work of a man running up stairs
  • · Replies 6 ·
Replies
6
Views
6K
How Does Climbing Stairs Compare to Lighting a Bulb in Energy Use?
  • · Replies 9 ·
Replies
9
Views
7K
Calculate Avg Power Output for 75kg Person Walking 100ft in 3min
  • · Replies 9 ·
Replies
9
Views
2K
Graphical method to calculate power
  • · Replies 1 ·
Replies
1
Views
2K
Calculating Work for Climbing Stairs
  • · Replies 1 ·
Replies
1
Views
6K
How Much Power Does a Man Generate Running Up Stairs Compared to a Light Bulb?
  • · Replies 6 ·
Replies
6
Views
4K
Power & Stair Climbing: Reviewing Old Homework
  • · Replies 2 ·
Replies
2
Views
2K
Kinetic Energy and the Power of Human Climbing
  • · Replies 1 ·
Replies
1
Views
3K
Need help with a problem involving work and calories
  • · Replies 1 ·
Replies
1
Views
2K