Final answer:
When merging back in front of a vehicle, it is important to avoid sudden deceleration and instead smoothly match the speed of traffic.
Step-by-step explanation:
When merging back in front of a vehicle, it is important to avoid slowing down suddenly. This is because sudden deceleration can be dangerous and potentially cause a rear-end collision.
Instead, it is recommended to smoothly merge back into the lane, matching the speed of the traffic. Use your turn signal to indicate your intention to merge, check your mirrors and blind spots, and find a safe gap in the traffic before merging.
By maintaining a consistent speed and smoothly merging, you can ensure a safer and more efficient transition back into the lane in front of the vehicle.