The Minecart with TNT explodes when lit by an activator rail, fire or a hard impact, and faster carts blow harder. It is a Minecart carrying a block, which rolls on rails like any cart. All block-carrying minecarts work the same; the Minecart with Chest page explains them.
It is made with the Crafting Table from TNT and Minecart.
Crafting table Any arrangement Also in the 2×2 inventory grid 
TNT + Minecart → Minecart with TNT
// Slots with several items cycle through every accepted option.
when powered, it throws the rider out of a Minecart, lights a Minecart with TNT and switches a Minecart with Hopper off (it stops pulling items until it rolls over an…
At the Crafting Table: 1 × TNT and 1 × Minecart give 1 × Minecart with TNT.
It is a minecart that carries a working block along the rails.
No: only one per inventory slot.
