Hang time: could you use a hose pipe to break a fall of 10 metres?

Man falling from a skyscraper

Source: Shutterstock

On screen chemistry with Jonathan Hare

In the 1988 film Die Hard we see Bruce Willis escape his assailants by jumping off the top of a tower with only a fire hose wrapped around his waist to break his fall. To help us discover what might happen to him we need to consider the material properties of the hose pipe, but first we need to do some calculations using a few basic physics equations, to work out the forces on Willis.  

Thanks for using Education in Chemistry. You can view one Education in Chemistry article per month as a visitor. 

A photograph of a teacher standing in a white lab coat, speaking with a class of children in a laboratory, is superimposed on a colourful background. Text reads "Teach Chemistry means support for classroom and staff room".

Register for Teach Chemistry for free, unlimited access

Registration is open to all teachers and technicians at secondary schools, colleges and teacher training institutions in the UK and Ireland.

Get all this, plus much more:

  • unlimited access to resources, core practical videos and Education in Chemistry articles
  • teacher well-being toolkit, personal development resources and online assessments
  • applications for funding to support your lessons

Already a Teach Chemistry member? Sign in now.

Not eligible for Teach Chemistry? Sign up for a personal account instead, or you can also access all our resources with Royal Society of Chemistry membership.