Projectile Launch Speed: Solve 876j Work Homework

  • Thread starter Thread starter Chica1975
  • Start date Start date
  • Tags Tags
    Projectiles Work
Click For Summary

Homework Help Overview

The problem involves calculating the launch speed of a projectile given the work done on it and its mass. The context is rooted in the principles of work and energy in physics.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the relationship between work and kinetic energy, with some noting that the work done is entirely kinetic. There are attempts to apply the work-energy principle, but uncertainty remains about how to proceed.

Discussion Status

Some participants have expressed confusion and are seeking further clarification on the concepts involved. There is an acknowledgment of the work-energy relationship, but no consensus has been reached on the next steps or methods to apply.

Contextual Notes

Participants are grappling with the application of the work-energy principle and the definitions of work and energy. There is a mention of a diagram being drawn, indicating an attempt to visualize the problem, but details on the diagram are not provided.

Chica1975
Messages
63
Reaction score
0

Homework Statement


A projectile launcher did 876j of work on a .398kg projectile what is the launch speed of the projectile?


Homework Equations


W = f*d
mg = 3.9004
after that I am stuck


The Attempt at a Solution



I drew a diagram and tried a few things but am completely stuck. please help.
 
Physics news on Phys.org
Chica1975 said:

The Attempt at a Solution



I drew a diagram and tried a few things but am completely stuck. please help.

The work done is entirely kinetic :wink:
 
thanks I will look it up and try again.
 
W = F * d is only a mathematical tool to calculate how much work is done. The applicable statement of physics is W = \DeltaE
 

Similar threads

  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 4 ·
Replies
4
Views
3K
Replies
2
Views
3K
  • · Replies 15 ·
Replies
15
Views
27K
  • · Replies 24 ·
Replies
24
Views
5K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 15 ·
Replies
15
Views
2K
Replies
27
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K