calculate the acceleration of a 2000-kg single air plane just before takeoff when the thrust of its engine is 500 N

acceleration = force / mass

A = 500/ 2000
a = 0.25 m/s/s

To calculate the acceleration of the airplane just before takeoff, we can apply Newton's second law of motion, which states that the acceleration of an object is equal to the net force acting on it divided by its mass.

The net force acting on the airplane is the difference between the thrust force generated by the engine and the opposing forces, such as air resistance and friction. In this case, we assume that there are no other significant forces acting on the airplane, so the net force is equal to the thrust force.

Given that the thrust force is 500 N and the mass of the airplane is 2000 kg, we can substitute these values into the formula:

Acceleration = Net Force / Mass

Acceleration = 500 N / 2000 kg

Acceleration = 0.25 m/s^2

Therefore, the acceleration of the airplane just before takeoff is 0.25 m/s^2.