Need help on a problem F=ma and i have gravity

  • Thread starter Thread starter wash
  • Start date Start date
  • Tags Tags
    F=ma Gravity
Click For Summary

Homework Help Overview

The discussion revolves around a physics problem involving force, mass, and acceleration, specifically in the context of an object falling under the influence of gravity. The original poster presents values for mass and acceleration, questioning the force of a collision.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants explore the relationship between force, mass, and acceleration, questioning the validity of the acceleration value provided. Some participants suggest that the acceleration due to gravity is incorrectly stated, while others consider the implications of the given values on the scenario described.

Discussion Status

The discussion is ongoing, with participants providing hints and questioning assumptions without reaching a consensus. There is an indication that further clarification of the problem's wording may be necessary for a more productive discussion.

Contextual Notes

There is a suggestion that the acceleration value may not correspond to typical gravitational acceleration, indicating a potential misunderstanding or miscommunication regarding the problem's setup.

wash
Messages
1
Reaction score
0
F=?
m=295kg
a=75m/s^2

an object is falling with a mass 295kg and has an acceleration of 75m/s^2 what is the force of the collision.

F=295(75 * or + gravity)
 
Physics news on Phys.org
You've got the wrong idea about how to solve the problem.
 
Hey Ernest, help him/her out, and in doing so help me out. I'm curious how that would be figured.

FYI... Haven't yet gotten beyond algebra..
 
I'm sorry, I can't. It's homework. But I will give you a hint. The rate to which gravity accelerates falling objects is not 75 m/s2. If the problem has been correctly copied, then that hint should help
 
Assuming that the acceleration figure is correct, which implies that the object is falling somewhere with a much higher gravitational attraction, the weight of the object is given by F = ma = 295kg *75 m/s^2 = 22,125 Nt.

The wording suggests that what might really be asked for is the energy of the collision, or E = (1/2)mv^2.

wash, can you post the exact wording of the problem?
 

Similar threads

Replies
11
Views
1K
  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 24 ·
Replies
24
Views
3K
Replies
13
Views
3K
  • · Replies 21 ·
Replies
21
Views
3K
Replies
7
Views
2K
  • · Replies 18 ·
Replies
18
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K