Capt Crash has hit the nail on the head a lot of low time pilots fly the aproach to fast the speed should be 1.3Vs ,most flying clubs then round this up to the next eazy to remember number the low time pilot then adds his "safety margin" and a bit for the crosswind and the gust and because the aircraft is heavy so we now have a C172 with a 80KT aproach speed .
Now it realy gets interesting as the guy trys to touch down the aircraft wants to keep flying and the end of the runway is coming up fast so the guy trys to force the aircraft down it bounces up and the next thing we are into is a PIO two or three cycles of this and the nose gear gives way and the whole plot slithers to a to a stop with £10,000 of damage.