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Hi can someone answer this please:
A data logger records the forces on a crash dummy used for testing car safety. The test car crashes into a barrier at 64km/hr (40 miles per our)
a). The car and the barrier experience forces. Describe the forces on the car and the barrier in terms of their size and direction.
b) An identical car is fitted with an Improved crumples zone. this car also crashes into the barrier 64 km. the improved crumple zone reduces the forces on the crash dummy. explain how? in your answer use ideas about time And momentum
I need this before tomorrow