Q: How long does it take, from the objects perspective, for an object passing the event horizon of a super massive blackhole to reach the singularity?

From an outside observer's perspective, an object that passes the event horizon of a supermassive blackhole would take an infinite amount of time to reach the singularity. This is because of time dilation effects, which cause time to appear to slow down as one approaches the event horizon, and eventually stop completely at the singularity.

From the object's perspective, however, the journey would be much shorter. The gravitational effects near the event horizon would begin to stretch and distort the object, eventually stretching it out into a long thread-like shape known as "spaghettification". The object would then eventually be stretched into a single point and fall into the singularity, all within a finite amount of time.

Q: From the object's perspective how long does it take to reach the singularity relative to the blackholes mass?

The exact amount of time it takes for an object to reach the singularity from the object's perspective is directly related to the mass of the black hole. The more massive the black hole, the stronger its gravitational field. This means that objects will experience a stronger gravitational pull and enter the singularity faster.

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