To determine the speed at which a (car and) trailer was ‘rear-ended’: testing of the amount of strain energy a towbar assembly would absorb for a given amount of deformation.
![Towbar Assembly Test Towbar Assembly Test](https://www.forensicmechanicalengineers.com.au/wp-content/uploads/2015/02/1502242_Sawka_Load_Test_Towbar_2.jpg)
To determine the speed at which a (car and) trailer was ‘rear-ended’: testing of the amount of strain energy a towbar assembly would absorb for a given amount of deformation.