An airplane starts from rest at the end of a runway and accelerates at a constant rate. in the first second, the airplane travels 1.11 m. what is the speed of the airplane at the end of the second second?

Explanation:

Given that the airplane starts from the rest (this is initial velocity equals to zero)  and accelerates at a constant rate, position can be described like this: where x is the position, t is the time a is the acceleration and is initial velocity. In this way acceleration can be found. .

Now we are able to found velocity at any time with the formula:

electrical power

gravity

explanation: