You are the design engineer in charge of the crashworthiness of new automobile models. cars are tested by smashing them into fixed, massive barriers at 56 km/h . a new model of mass 1800 kg takes 0.14 s from the time of impact until it is brought to rest.

Those kind of question have the force and the acceleration as a questions

Explanation:

Calculate the force exerted on the car by the barrier and the acceleration of the motion.

Acceleration is the derive of the velocity so:

Now replacing to find force

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000