Melissa was putting on her makeup when she accidentally ran into a stopped car at a red light, 11.01 m in front of her. Melissa's 1,219 kg car was moving at 8.133 m/s and came to a complete stop in 0.3994 seconds. What is the magnitude of the force that stopped Melissa's car?

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

3. dark matter

empty space could also be a simple vacuum

its lower due to the doppler effect.: apex