Energy efficiency of torsion Catapult

Click For Summary
SUMMARY

The energy efficiency of a torsion catapult can be calculated using the formula Energy Efficiency = Energy Output / Energy Input. The input energy can be determined by analyzing the potential energy stored in the torsion mechanism before firing, which is influenced by the force applied (20N) and the angle of release (50 degrees). The output energy can be derived from the velocity and acceleration data collected during the projectile's trajectory using Logger Pro software. Understanding these parameters is crucial for accurately calculating the energy efficiency of the catapult.

PREREQUISITES
  • Understanding of potential energy and its calculation.
  • Familiarity with basic physics concepts such as force, velocity, and acceleration.
  • Experience using Logger Pro software for data analysis.
  • Knowledge of the mechanics of torsion catapults.
NEXT STEPS
  • Calculate the potential energy of the torsion spring before firing the catapult.
  • Analyze the velocity and acceleration data collected to determine the kinetic energy of the projectile.
  • Research methods for measuring energy output in projectile motion.
  • Explore advanced techniques for optimizing torsion catapult design for improved energy efficiency.
USEFUL FOR

Students in physics or engineering, hobbyists building catapults, and anyone interested in the mechanics of energy transfer in projectile systems.

lovemake1
Messages
147
Reaction score
1

Homework Statement



How would you find the energy efficiency of a torsion catapult ? (one i built for project)


I have the Force at which I am pulling the arm.
F = 20N

also the angle from origin to the point of release ( or when the ball leaves the arm)
Theta = 50 degrees



Homework Equations



Energy Efficiency = Energy Output/ Energy Input
E input =

The Attempt at a Solution



i have filmed the trajectory of my catapult using Video camera and logger pro software.
i do have velocity and acceleration in both x and y directions.

But how do i exactly find the Input energy of this particular system?
 
Physics news on Phys.org
lovemake1 said:

Homework Statement



How would you find the energy efficiency of a torsion catapult ? (one i built for project)


I have the Force at which I am pulling the arm.
F = 20N

also the angle from origin to the point of release ( or when the ball leaves the arm)
Theta = 50 degrees



Homework Equations



Energy Efficiency = Energy Output/ Energy Input
E input =

The Attempt at a Solution



i have filmed the trajectory of my catapult using Video camera and logger pro software.
i do have velocity and acceleration in both x and y directions.

But how do i exactly find the Input energy of this particular system?

What is the source of energy? What is the potential energy of that source before firing the catapult? What is it after it has been fired?

AM
 

Similar threads

Catapult spring, Kinetic and Potential energy
  • · Replies 10 ·
Replies
10
Views
3K
Calculating Catapult Velocity: Grade 12 Physics Guide
  • · Replies 4 ·
Replies
4
Views
3K
Catapult Lab Help: Calculating Projectile Motion and Energy | Physics Lab Tips
  • · Replies 2 ·
Replies
2
Views
2K
Maximizing Projectile Distance with Torsion Spring Catapult
  • · Replies 5 ·
Replies
5
Views
4K
Energy Transformation Efficiency Problem
  • · Replies 2 ·
Replies
2
Views
1K
How Should the Spring Constant k Affect the Efficiency of a Catapult?
  • · Replies 1 ·
Replies
1
Views
2K
Effeciency and Current Relationship
  • · Replies 7 ·
Replies
7
Views
2K
How to calculate the efficiency of a fuel engine
  • · Replies 2 ·
Replies
2
Views
3K
How do i find the spring constant for a rope torsion spring
  • · Replies 25 ·
Replies
25
Views
9K
Kinetic energy of a bouncing ball
  • · Replies 7 ·
Replies
7
Views
5K