Forces & Injuries of Identical Vehicles on Damp Road

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In a scenario involving two identical vehicles on a damp road, one stationary with brakes applied and the other traveling at 15 mph, the forces experienced by the occupants will differ due to the motion of the second vehicle. Newton's laws of motion apply, indicating that the moving vehicle will exert greater forces upon impact compared to the stationary one. The damp road surface may also affect braking efficiency and impact dynamics. Consequently, injuries sustained by the occupants are likely to be unequal, with the moving vehicle's occupants facing higher risks. Understanding the frame of reference related to the center of mass can aid in analyzing the situation further.
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Homework Statement


Two identical vehicles 1 vehicle stationary and with brakes applied other vehicle traveling at 15mph. Road surface of good tarmacadam but damp after rain. Would occupants of both vehicle experience the same forces and would the injuries sustained be equal?

Homework Equations



Newtons laws of motion

The Attempt at a Solution



So long ago since I worked this at out college (50 years!) I can't remember formulae and method. Any help would be appreciated.
 
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Choose a frame of reference connected with the center of mass of the 2 objects to discribe distance and velocity. Does this help?
 
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