Question

If a train travel from Addis Ababa to Dire Dawa at a constant velocity of 400Km/hr and the to Djibouti at a constant velocity of V. if the average velocity of 520Km/hr then what is the value of V?----------------

Answer 1

The value of V is 640 km/hr.

What is Average velocity?

Average velocity is the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs.

To calculate the value of V from the question, we use the formula below.

• V' = (V+U)/2............ Equation 1

Making V the subject of the equation

• V = 2V'-U.............. Equation 2

From the question,

⇒ Given:

• V' = 520 km/hr
• U = 400 km/hr

Substitute these values into equation 2

• V = (520×2)-400
• V = 640 km/hr

Hence, the value of V is 640 km/hr.

Learn more about average velocity here: brainly.com/question/4931057

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