How many seconds it will take to activate resurrect after a finishing a resurrect in Temple run

I think it's more of a timing issue. The farther you go the farther some of the jumps get and you have to hit it at the absolute last step before you fall and you'll barely land it. To answer the original question though, there isn't any way to jump higher.

Here is how to find out approximately what your score might be:

If you were to run a certain distance without getting any coins your score (S) would equal your distance (d) times your multiplier (m): S = m × d.

But when you add coins, your score is the multiplier times the distance times the amount of coins (c) divided by 1000: S = m × d × c / 1000.

(This may be off by 1000 points.)