You could model the grenade as a conventional rigidbody with an initial speed and have it affected by gravity. Add a script with an OnCollision method to trigger when it touches a vehicle or the ground.

Grenade throw logic
I am working on some functionality for a website. I am designing, and I am kind of stuck on something small. I want to hide divs that contain an exact class structure. 

For example, if I give it the class selector ".class1.class2.class3", it will ONLY hide elements that have exact class structure. What I am doing now would hide elements like ".class1.class2.class3.class4", and I don't want that. 

Any help would be greatly appreciated!
