posted by Linda on .
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 51 km/h (32 mph). A new model of mass 1900 kg takes 0.18 s from the time of impact until it is brought to rest.
Calculate the average force exerted on the car by the barrier.
Calculate the average deceleration of the car.
solve for force.
force= m*a solve for a
that doesn't work (at least that's what our teacher is telling is)
If you lift a 57.7kg box 2.41m over your head, how much work did you do?
Read your Notes jeje.. Hope this helps :)