i'm trying to figure this out:

i have a telephone pole made out of pine, 5m tall, 28cm in diameter, with

a mass of 570 kg/cu.m.

which means the telephone pole weights 2576kg.

the car weights 2359kg, and travels at 16m/s, which means it has an energy of 301,9kj.

so in theory, if the vehicle hits the pole in outer space, the car would come to a complete stop, and the telephone pole would be accelerated at 16m/s.

on earth this is not how things happend.

the car hits the telephone pole, and the telephone pole remains in place, because of friction.

another factor is that the energy of the car is only expended on a small fraction of the telephone poles surface area, about 0.03sq m, which grows to 0.15sq m as the car crumples around the pole.

so my question is, how much pressure does the telephone pole exert on the car?

and how do i calculate the friction and structural integrity of the telephone pole into this?

oh and another question:

is this formula

the opposite or reciprocal, or whatever its called of