Information challenge – force of a kangaroo punch

[Phil Waterman]

My wife is a career reference librarian, during her career she has come across only a handful of questions that she could not dig up the for answer. This is one - she needs to know the force (newtons, foot pounds any measure of force) of a large male kangaroos punch. So I’m putting the challenge out to the MLU community, in particular our members in Australia. How long will it take to come up with an answer? My guess is under 12 hours.