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penguins

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## Homework Statement

Airplane A, starting from rest with constant acceleration, requires a runway 600m long to become airborne. Airplane B requires a takeoff speed twice as great as that of airplane A, but has the same acceleration, and both planes start from rest.

## Homework Equations

a.) How long must the runway be, in meters, for airplane B?

b.) If airplane A takes time T to travel the length of it runway, how long (in terms of T) will airplane B take to travel the length of its runway?

## The Attempt at a Solution

I tried multiplying the 600m runway by 2 to get the runway length for airplane B, but that answer is incorrect, I am not sure how to find the length of the runway with the information given in the problem.