change in speed is like from 10 km/h to 20 km/h
a change in velocity without change in speed happens when it goes around a curve at constant speed. speed only has magnitude. Velocity also has direction.
Speedometer tells speed. For velocity you also need a compass.
change in acceleration is when you put the brakes on. Going from constant velocity to slower is change in velocity, therefore acceleration.
Think of a train traveling along a winding track. Give an example of a change in the trains speed, a change in the trains velocity, and a change in the trains acceleration. Please respond quick
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