Register to reply

Biomechanics problem! Help appreciated!

by study
Tags: appreciated, biomechanics
Share this thread:
study
#1
May3-09, 08:16 PM
P: 1
Hey guys,

I'm having alot of trouble trying to work out this problem and don't know exactly where to start. I was wondering if someone knows how to tackle this?

A unipennate muscle of pennation angle 150 inserts into the distal bone of a hinge joint at an angle of 300. If the tension in the muscle is 550 N when the joint angle is 840, determine the rotary and stabilising components of force acting on the distal bone. If the insertion distance of the muscle from the joint is 4cm determine the muscle torque about the joint.

Thanks.
Phys.Org News Partner Science news on Phys.org
Scientists develop 'electronic nose' for rapid detection of C. diff infection
Why plants in the office make us more productive
Tesla Motors dealing as states play factory poker
tiny-tim
#2
May4-09, 04:59 AM
Sci Advisor
HW Helper
Thanks
tiny-tim's Avatar
P: 26,148
Hi study! Welcome to PF!

First draw a force diagram, like the one here.

Then take components of force, and also take moments of force (torques) about some convenient point.

What do you get?


Register to reply

Related Discussions
Biomechanics problem w/ vectors Introductory Physics Homework 2
Double integral problem...help appreciated! Calculus & Beyond Homework 3
Impulse Problem, Any Help Appreciated Introductory Physics Homework 1
Biomechanics HW Problem Introductory Physics Homework 4
Circular motion problem. Help appreciated. Introductory Physics Homework 0