The parking brake on a 1000 kg cadillac has failed, and it is rolling slowly, at 1 mph , toward a group of small children. seeing the situation, you realize you have just enough time to drive your 2000 kg volkswagen head-on into the cadillac and save the children. you may want to review (page 269) . part a with what speed should you impact the cadillac to bring it to a halt?

0.5 mph in the opposite direction

Explanation:

= Mass of Cadillac = 1000 kg

= Velocity of Cadillac = 1 mph

= Mass of Volkswagen = 2000 kg

= Velocity of Volkswagen

In order to know the speed the system must have the momentum exchange

As the linear momentum of the system is conserved

The speed of the impact is given by 0.5 mph in the opposite direction

measure their densities same density, same sub

thermal energy is the answer