# Help with dynamics (elasticity - tension)

**URL:** <https://forum.kirupa.com/t/help-with-dynamics-elasticity-tension/177323>\
**Category:** flash\
**Created:** [February 1, 2006, 12:34am UTC](https://forum.kirupa.com/t/help-with-dynamics-elasticity-tension/177323 "2006-02-01T00:34:37Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Pressplay](https://avatars.discourse-cdn.com/v4/letter/p/a87d85/32.png) [@Pressplay](https://forum.kirupa.com/u/Pressplay)\
**Post date:** [February 1, 2006, 12:34am UTC](https://forum.kirupa.com/t/help-with-dynamics-elasticity-tension/177323/1 "2006-02-01T00:34:37Z")

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Hi guys,

im trying to develop a car seatbelt (a safety belt) for a educational project…it consists on the user grabbing the seat belt and buckling it…

i tried my best but i cant get it to work properly…i need the belt itself to show some elasticity, tension, as the user moves it to buckle up…not just a black line getting bigger in the direction i want…

hope i could make myself clear…any help would be much much much very appreciated…

thanks in advance