What is the Conservation of Energy Principle Used for in AP Physics Homework?

Click For Summary
SUMMARY

The Conservation of Energy Principle is essential for solving AP Physics problems, particularly in scenarios involving kinematics and gravitational acceleration. In the discussed problem, the speed of the clay is calculated using the equation vf^2 = vi^2 + 2a(d), where the initial velocity (vi) is zero, acceleration (a) is 9.8 m/s², and distance (d) is represented by height (H). The final velocity (vf) of the clay is determined to be vf = √(19.6H). The assumption that the speed of the pan equals the speed of the clay is a critical point for further analysis.

PREREQUISITES
  • Understanding of kinematics equations, specifically vf^2 = vi^2 + 2a(d)
  • Knowledge of gravitational acceleration (9.8 m/s²)
  • Familiarity with the concept of potential and kinetic energy
  • Basic problem-solving skills in physics
NEXT STEPS
  • Study the application of the Conservation of Energy Principle in various physics problems
  • Learn how to derive and apply kinematic equations in different scenarios
  • Explore the relationship between potential energy and kinetic energy in physics
  • Practice solving AP Physics problems involving multiple objects and energy transfers
USEFUL FOR

AP Physics students, educators teaching physics concepts, and anyone preparing for the AP Physics C exam will benefit from this discussion.

meganw
Messages
96
Reaction score
0

Homework Statement



http://img515.imageshack.us/img515/6163/physicscopydi7.gif

This is AP Physics C 2003 M2 by the way...

Homework Equations



Kinematics: vf^2=vi^2+2a(d)

The Attempt at a Solution



a) Speed of the clay uses kinematics. Clay starts at rest, accelrates at gravity=9.8, and the distance is H:

vf^2=vi^2+2a(d)

vf^2=2(9.8)(H)

vf=\sqrt{}19.6H

b) The speed of the pan...hmmmm..so I would guess that it's the same as the speed of the clay just was, but I'm not sure if I can make that assumption.

Thanks for the help, by the way. =)
 
Last edited by a moderator:
Physics news on Phys.org
p.s. I'm going to sleep right now and I won't have time to discuss this problem tomorrow, but if someone is willing to just post all the steps to the solution of this AP problem, you could be my savior. Thank You!
 

Similar threads

Determine when (m), and how long the rocket should fire.
  • · Replies 2 ·
Replies
2
Views
2K
Finding the amplitude of a vertical spring
  • · Replies 2 ·
Replies
2
Views
3K
Conservation of Energy: Spring PE: Toy gun on spring
  • · Replies 4 ·
Replies
4
Views
2K
Conservation of Energy -- Toy car hits and compresses a spring
  • · Replies 14 ·
Replies
14
Views
3K
What is the Rate of Work Done on a Box Moving at a Constant Velocity?
  • · Replies 3 ·
Replies
3
Views
2K
Spring problem using work energy theorem
  • · Replies 5 ·
Replies
5
Views
9K
What is the ideal value of T for the rocket to reach 990 m altitude?
  • · Replies 9 ·
Replies
9
Views
25K
Calculating Maximum Height of an Arrow with Loss of Mechanical Energy
  • · Replies 6 ·
Replies
6
Views
2K
Clay falling onto a pan attached to a vertical spring
  • · Replies 4 ·
Replies
4
Views
3K
Energy problem (compression of a spring)
  • · Replies 6 ·
Replies
6
Views
3K