A car, initially traveling at 90 miles per hour, c...

A car, initially traveling at 90 miles per hour, crasheshead-on into a brick wall. Almost all the car's energy is absorbedby the crumpling metal of the car's front end. If you had tippedthe same car, nose first, off the roof of a building, how highwould the building have to be for the car to sustain the sameamount of damage as was caused by the brick wall?

Answers ( 1 )

  1. viktor sauer
    viktor sauer
    Kinetic Energy is equal to Potential energy so:
    KE= .5mv^2
    PE= mgh (h is the unknow)
    KE=PE
    .5mv^2=mgh (the mass' will cancel out)
    .5v^2=gh (speed of the car is 90 miles per hour that isgoing to have to changed to meters per second and from there justplug in the values and you should get the correct answer)

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