Finding the direction of forces

[grade11studentgoaat]

Homework Statement

how can i easily find the forces direction like if i said a kid was pulling 10lb[W] where would i put the tension in the free body diagram

Relevant Equations

nothing

Tension force = 10lb[W] where do i put tension arrow in the full body diagram

 

[berkeman]

Welcome to PF.

See if this article helps: https://en.wikipedia.org/wiki/Free_body_diagram

 

[grade11studentgoaat]

Welcome to PF.

See if this article helps: https://en.wikipedia.org/wiki/Free_body_diagram

thank you!

 

[berkeman]

You're welcome. After reading through that article, if you still have questions please post them here and we will try to help you understand FBDs.

 

[kuruman]

To draw an arrow representing tension:

• If you treat the system as a point mass, put the tail of the arrow roughly at the center of mass of the object. If it is an extended body and you need to calculate torques, then it would be correct to put the tail of the arrow at the point where the string or rope is attached to the object.
• The shaft of the arrow should be drawn parallel to the taut string or rope.
• The head of the arrow should always point away from the object. That's because you cannot push with a rope.

I hope this helps.

 

[Orodruin]

On the free body diagram of what body?