Sorry I forgot to mention.
The pressure sensitive film had been adhered to a portion of a 737 fuselage laying flat on the ground. The mass did penetrate the surface very lightly and bounced back up 0.1m.
Homework Statement
I am doing a project on pressure sensitive films and finding if they indicate the correct amount of impact. I have carried out an impact test by dropping a mass of 5KG from a height of 1m. I have calculated the velocity to be 4.43m/s. The kinetic energy just before impact is...