The experience of time is a bit different in the case of a black hole. Let’s Suppose someone ( object A ) falls into the Black hole. When object A approaches towards the event Horizon, outside the black hole. Time seems to slow down for him, and slowly time will freeze for him. Slowly object A will disappear into the black hole. According to some physicist object A might also see the whole universe in fast forward.
Blackhole is a one-way path, once you go in there might be only one way to get out of it. The gravity curves the space so much that once an object goes in there is no way back. And the mass of the black hole is also so concentrated, and the gravity too. Each centimeter of the object will experience a gravity more than a million times that it experiences in normal conditions. Basically, the object will crush, as all the particles will get apart, due to the intense amount of force. So if you are thinking of going into one think twice.