Question

Which is true?

1. Both trains speed up all the time.
2. In the time interval from t= 0 to t=ts,
train B covers more distance than train A.
3. At time to, both trains have the same
velocity.
4. Somewhere before time ts, both trains
have the same acceleration.
5. Both trains have the same velocity at
some time before th.

Answer 1

Given the context, we cannot accurately determine the truth of the statements without the accompanying graphs on the trains' motion, which are needed to evaluate speed, acceleration, and distance over time.

Step-by-step explanation:

The question appears to ask which statement is true given a scenario where two trains travel over time, depicted in a series of graphs. Unfortunately, without these graphs or a more detailed description of the trains' motion, we cannot accurately determine which statement is true. Normally, the truth of statements 1-5 would depend on the specific details of the trains' acceleration, velocity, and distance covered over time as illustrated by the graphs. In a typical scenario, if both trains experience the same constant positive acceleration from rest and then decelerate to a stop, for example, there would likely be a time at which they share the same velocity (statement 3) and a time at which they share the same acceleration (statement 4), assuming their acceleration profiles are identical. However, without the graph data, no certainty can be provided regarding the speed or distance covered by the trains.