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Your speed when your car hits a fixed object is 60 mph.

The given parameters:

  • Your initial speed, v = 60 mph

What is relative velocity?

Relative velocity tells us how fast we are traveling from a fixed point or reference point.

  • When travel at 60 mph in a car, you are moving at the same rate with the car.
  • If you are not wearing a seat belt, when you hit a fixed object, you will move forward at the same rate as the car's speed.

Thus, we can conclude that your speed when your car hits a fixed object is 60 mph.

Learn more about relative velocity here: https://brainly.com/question/17228388

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