Answer: When someone in front of you has stopped , when the ambulance is behind you , when a police pulls you over.
Explanation:
You have learned about the different factors that affect acceleration and braking. The driving is unsafe around the ambulance and police car when travel at the speed limit.
Acceleration is defined as the rate change of velocity with time.
acceleration a = (Δv) / (Δt)
When an individual is driving, he must drive in a speed limit mentioned according to the driving law. When you are driving in safe limit, you are still unsafe around some vehicles.
They are police cars, ambulance, JCBs or Earthmovers.
Thus, it may be unsafe to drive at speed limit.
Learn more about acceleration.
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