Final answer:
The speed of the train traveling at a constant speed over a straight track and covering 2400 meters in 80 seconds is calculated to be 30 meters per second (m/s).
Step-by-step explanation:
To calculate the speed of the train traveling on a straight track at a constant speed, we use the formula for average speed, which is distance divided by time. Since the train covers a distance of 2400 meters in 80 seconds, we divide 2400 meters by 80 seconds to find the train's speed.
Speed = Distance / Time = 2400 meters / 80 seconds = 30 meters per second (m/s).
Therefore, the speed of the train is 30 m/s.