The use of air bags in cars reduces the force of impact by a factor of 110.(the resulting force is only as great.) what can be said about how the airbag changed the duration of the collision?

The variation of momentum (= the impulse) of the car during the impact is

does not change whether the car has an airbag or not, because 

and 1) the mass of the car is always the same 2) the change in velocity of the car is always the same,

so if  is constant and F is reduced by a factor 110, then  (the duration of the collision) must be increased by a factor 110 with the airbag.

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