Question

TRAIN A LEAVES A TOWN AT 9 AMTRAVELLING NORTH AT 45 MPH. AT 3 PM TRAIN B LEAVES FROM THE SAME TOWN ALSO HEADING NORTH ALONG A

PARALLEL TRACK AT 60 MPH. AT WHAT TIME (ON THE CLOCK) WILL THE SECOND TRAIN (B) PASS THE FIRST TRAIN (A)?

What information is known/unknown? Units of this information? Are unit conversions needed for self- consistency

Draw a picture of the situation and label all of the objects/known quantities/facts.

How does what you are looking for relate to what you know?

How can you use this information to solve for what you are looking for in the problem?

Plug the numbers into the derived solution relation and solve

Does this answer make sense in terms of value and units?

Answer 1