Constant Motion

The video tutorial explains the classic train problem, where two trains leave at different times and speeds, and the goal is to determine when they will meet. It introduces the concept of constant motion, using the formula distance = rate x time, and provides a step-by-step solution to the problem. The tutorial also covers how to calculate the distance traveled by the trains once they meet.

What is the basic formula for constant motion?

• Distance = Speed / Time

• Distance = Speed * Time

• Distance = Time / Speed

• Distance = Speed + Time

In the example problem, what is the speed of the first train?

• 50 mph

• 70 mph

• 80 mph

• 60 mph

How much later does the second train leave compared to the first train?

• 1 hour later

• 30 minutes later

• 3 hours later

• 2 hours later

What is the key step in solving when the two trains will meet?

• Finding the total distance traveled

• Setting the rate times time of both trains equal

• Calculating the average speed

• Subtracting the speeds of the trains

What is the time it takes for the trains to meet?

• 3 hours

• 2 hours

• 2 hours and 40 minutes

• 2 hours and 30 minutes

What should you do to find the distance traveled by the trains?

• Subtract the time from the speed of the first train

• Multiply the speed of the first train by the time

• Add the speeds of both trains

• Divide the speed of the second train by the time

What is a common trick question in standardized tests related to this problem?

• Asking for the time the trains meet

• Asking for the distance traveled

• Asking for the speed of the trains

• Asking for the departure time of the trains