Question

the models show the motion of two trains leaving a station. which train goes faster?

step 1
make a prediction.
the green train travels at a faster speed than the blue train.

step 2
find the speed of the first object.
the green train travels at a speed of 4.5 meters per second.

step 3
find the speed of the other object.
the blue train travels at a speed of meters per second.

Explanation:

Identify the speed of the Green train

$$ v_{\text{Green}} = 4.5\text{ m/s} $$

Determine the speed of the Blue train

$$
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$$

Answer:

The Blue train travels at a speed of <blank>3</blank> meters per second.