Question

identical train engines pull trains on different lines. the number of cars each depends on the line.
each train has the same acceleration as it begins to move. order the lines to show of the force applied to each train.
larger force
smaller force

Explanation:

Step1: Recall Newton's second law

According to Newton's second law \(F = ma\), where \(F\) is force, \(m\) is mass, and \(a\) is acceleration. Given that \(a\) is the same for all trains.

Step2: Compare the masses

Since \(F\propto m\) (when \(a\) is constant), we just need to order the masses from largest to smallest.
The masses are: \(960000\) (late - night) \(\gt720000\) (weekend) \(\gt600000\) (commuter) \(\gt480000\) (midday) \(\gt360000\) (holiday)

Answer:

late night, weekend, commuter, midday, holiday