View Single Post
  #25  
Old 14-08-2008
Jonny_H Jonny_H is offline
Member
 
Join Date: May 2007
Location: Warwickshire
Posts: 69
Send a message via MSN to Jonny_H
Default

Quote:
Originally Posted by Dunc View Post
A further thought:
Your idea maybe quite effective under some conditions (e.g. when travelling on the flat), but when falling it wouldn't look right because our model cars already accelerate under gravity in the same way a full-size vehicle does (i.e. in this instance you don't need to slow it down, assuming the track/obstacles are to scale).
No...

The effect when falling is exactly the same. From the top of its flight (i.e., zero vertical velocity) the car will accelerate downwards at 10 (okay, 9.81) m/s^s. So, in 0.5 sec, both cars will fall (1/2 a t^2 =) 1.25m.

For the 1:1 car, that means it's fallen roughly its own height. The 1/10th car will look as though it's fallen 10 times as far - unless you slow it down.


I find it's something which is really noticeable in films with CGI, where they haven't got the gravity / acceleration quite right - there's a monster the size of a bus, and I'm left thinking "it just can't leap like that".
Reply With Quote