Fixed joint breaking without hit

Questions & Answers
1

I’m trying to make street lamps to break in 3 pieces when hit with a car by fixed joint, but the problem is. Even without hitting em, all those parts will fall on ground when I run the game, and nothing does even hit that street lamp when it breaks down.

Hopefully this picture will help understanding:

98148-game.jpg
98148-game.jpg500×781 94.6 KB

So, how I can prevent/stop it from breaking down always when I start the game and to make it break down only when hit by a car?

2

The joints might break, due to each object exerting physical force on the joints, as gravity is trying to pull them down, and the joints seem not to be strong enough to withstand that force.

You could also just try controlling each joint or Rigidbody via script, so changes will be made upon something slamming into the lamp post, so that the lamp post will break apart.