Your speed when your car hits a fixed object is 60 mph.
The given parameters:
- Your initial speed, v = 60 mph
<h3>What is relative velocity?</h3>
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: brainly.com/question/17228388
Explanation:
Let u is the initial speed of the bike. Finally, the bike stops, v = 0
Deceleration of the bike, 
Time, t = 5
Distance covered, s = 62.5 m
We need to find the initial speed of the bike. Using third equation of motion as :
u = 11.18 m/s
So, the initial speed of the bike is 11.18 m/s. Hence, this is the required solution.
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Explanation:
