gmod how to make an entity explode

i made a gun that throwing body mod,and i wish when i touch something make the body explode,what function and hook should i use? thank you in advance!

this might help its an exploding melon script thread http://forum.facepunch.com/showthread.php?t=1477541

util.Effect

You will want to look at the list of effects and choose (Explosion) as the effect to run.

NOTE: This method will create an explosion that does no damage.

thank you for your apply , but there is a different. i need an entity throw out like parabola,and when i touch earth of something ,i need a hook to explode it, i don’t know how to hook it

[editline]30th March 2016[/editline]

i throw the entity out like parabola, how can i hook when it touch earth or something?