the truck and the insect have the same amount of force....Newtons third law
its dirty!!
It would slow it down by an imperceptible amount, and leave a squashed mark on the windscreen (windshield).
If you park your truck under trees it could well be sap hitting your truck (did it to my car). Just follow the instructions from the former poster to get this off. Marcy Sounds like bee guts (or other large insect) after it hits your truck while you are going at high speeds. A wax applied to your hood and bonnet (and elsewhere) would make it easier to remove.
the truck behind the other car
Whether the car hits the truck or the truck hits the car, it's going to be bad for the car.
Only if the truck driver was at fault.
no
it does not have enough friction.
same
not enough friction
You are. It was in your truck and not properly tied down or restrained. Essentially, you 'littered' and caused damage to someone else.
Do they stick together? yes