Relative motion Flashcards

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1
Q

How do you calculate the relative motion of two trains moving towards each other at the opposite direction? (One red train another blue)

A

You add the speeds together
E.G - 30 km/h + 25 km/h = 55 km/h

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2
Q

If you are sat on the red train why does the blue train appear to move faster and closer compared to when you sat at the side of the track?

A

Because the Blue train is moving towards you whilst you’re also moving towards

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3
Q

How do you calculate the relative motion for when you have two objects moving at the same direction and the same straight line?

A

You subtract their speed to calculate relative motion
E.G - 30 mph - 20 mph = 10 mph

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