Physics
posted by Linda .
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.

Physics 
bobpursley
force*time= mass*changevelocity
solve for force.
force= m*a solve for a 
Physics 
bla
that doesn't work (at least that's what our teacher is telling is)

Physics 
Tara
If you lift a 57.7kg box 2.41m over your head, how much work did you do?

Physics 
Nico
Read your Notes jeje.. Hope this helps :)
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