li1ndYshelinglerina li1ndYshelinglerina

03-01-2017
Mathematics

contestada

A 100-meter-long christmas train needs 30 seconds to cross a 400-meter-long bridge. assuming the train goes at a steady speed, how fast is it?

Respuesta :

texaschic101 texaschic101

03-01-2017

length of train : 100
length of bridge : 400
distance covered by the train to cross the bridge : (100 + 400) = 500
time taken by the train to cross : 30

speed = distance / time
speed = 500/30
speed = 16.67 meters per second <===

Answer Link

Otras preguntas

Construct a sentence for the meaning of the word. Make sure you sentence has context clues. The word is Hamper, Meaning: To hinder the progress of movement.

Which leadership behaviors did the university of michigan identify in their leadership studies?

Which was true of food-gathering societies in prehistoric times?

What effect do you think the courts ruling had on police officers

A student has written a journal. Which of the following is true? A journal is a form of persuasion that allows people to share their opinions. A community

In martin luther king's speech i have a dream, how does he include history and lirerary references

Infer why there is more species diversity in southern florida than there is in northern alaska

Which organelle should be listed under “Plant Only” in the diagram?

Which sentence states the main idea developed by the author’s comparison of Shakespeare’s works to music?

Which was true of food-gathering societies in prehistoric times?