Answer:
first isolate all infected children
Answer:
Velocity
Explanation:
Speed is how fast something moves.
Velocity is how fast it moves and in what direction it moves in.
Acceleration is the change in how fast it moves. I.e. if it speed up or slows down.
Here we are given the speed of the train (75mph) and the direction (north), therefore it is velocity.
Hope this helped!
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