How Do I Correctly Draw This Free Body Diagram?

Click For Summary
SUMMARY

The discussion focuses on the correct methodology for drawing a free body diagram (FBD) to solve a physics problem involving forces. Key concepts include the representation of weight as a downward force, the normal force as perpendicular to the contact surface, and the application of equations such as Fsinθ = mg + μFcosθ. Participants emphasize the importance of accurately identifying forces to derive the correct solution for the problem presented.

PREREQUISITES
  • Understanding of free body diagrams (FBD)
  • Knowledge of Newton's laws of motion
  • Familiarity with trigonometric functions in physics
  • Concept of friction and its coefficient (μ)
NEXT STEPS
  • Study the principles of drawing accurate free body diagrams
  • Learn about the application of Newton's second law in solving FBD problems
  • Explore the relationship between forces and angles in physics
  • Investigate the role of friction in motion and its mathematical representation
USEFUL FOR

Students studying physics, educators teaching mechanics, and anyone seeking to improve their skills in analyzing forces and drawing free body diagrams.

muna580
I am trying to solve this problem but I am having a hard time drawing a free body diagram. Can someone please help me draw one so I can solve the problem

http://img141.imageshack.us/img141/1662/untitled1pc1.jpg
 
Last edited by a moderator:
Physics news on Phys.org
muna580 said:
I am trying to solve this problem but I am having a hard time drawing a free body diagram. Can someone please help me draw one so I can solve the problem

http://img141.imageshack.us/img141/1662/untitled1pc1.jpg
[/URL]

Remember that weight (a force) always points straight down, and that the normal force is perpendicular to the surface the object makes contact with. Once you have these forces figured out, the rest is given in the question.
 
Last edited by a moderator:
Is this correct?

http://img133.imageshack.us/img133/6712/untitled1at2.jpg

Fcosθ = N

f = μN
f = μFcosθ

Fsinθ = mg + μFcosθ

Using that equation above Fsinθ = mg + μFcosθ, I tried to solve of F and then use Fdcosθ to get the work, I got the answer wrong.
 
Last edited by a moderator:

Similar threads

Distributed weight of inclined beam.
  • · Replies 11 ·
Replies
11
Views
3K
Potential Mistake in Free-Body Diagram
  • · Replies 5 ·
Replies
5
Views
2K
Solving Free-Body Diagrams for Moving Nuts on Rods: Tips and Techniques
  • · Replies 9 ·
Replies
9
Views
2K
Is it friction or tension acting on the person hanging on a rope?
  • · Replies 4 ·
Replies
4
Views
1K
Best Egg Drop Contest Shock Absorber?
  • · Replies 1 ·
Replies
1
Views
858
Block on top of an inclined plane, with a rough surface, that moves with constant acceleration
  • · Replies 41 ·
2
Replies
41
Views
4K
Free body diagram for an inverted pendulum in the rolling sphere
  • · Replies 9 ·
Replies
9
Views
2K
Free Body Diagram of Mass-Spring System
  • · Replies 5 ·
Replies
5
Views
1K
Statics free body diagram (frames and machines)
  • · Replies 5 ·
Replies
5
Views
4K
Free-body diagram of mechanical system
  • · Replies 3 ·
Replies
3
Views
2K