The same type of engine is placed in two different airplanes. The first airplane is twice as heavy as the second airplane. Which statement is correct about the mass of the airplane and its acceleration, assuming a constant net force?(1 point)

Responses

Decreasing the mass of the airplane will result in the airplane accelerating less. 

Decreasing the mass of the airplane will result in the airplane accelerating less. 

Increasing the acceleration of the airplane causes the engine to provide less force. 

Increasing the acceleration of the airplane causes the engine to provide less force. 

Decreasing the mass of the airplane will result in the airplane accelerating more. 

Decreasing the mass of the airplane will result in the airplane accelerating more. 

Increasing the acceleration of the airplane causes the engine to provide more force. 

Increasing the acceleration of the airplane causes the engine to provide more force. 

1 answer

To analyze the situation, we can use Newton's second law of motion, which states that \( F = ma \), where \( F \) is the net force, \( m \) is the mass, and \( a \) is the acceleration.

In this scenario, if the first airplane is twice as heavy as the second airplane, we can denote the mass of the second airplane as \( m \) and the mass of the first airplane as \( 2m \).

Assuming the same engine provides the same constant force \( F \):

  1. For the lighter (second) airplane: \[ F = m a_2 \implies a_2 = \frac{F}{m} \]

  2. For the heavier (first) airplane: \[ F = 2m a_1 \implies a_1 = \frac{F}{2m} \]

From these equations, we can deduce the following:

  • The lighter airplane (mass \( m \)) will have a greater acceleration \( a_2 \) compared to the heavier airplane (mass \( 2m \)) which will have a smaller acceleration \( a_1 \).

With this understanding, the correct statements from the provided options seem to be:

  • "Decreasing the mass of the airplane will result in the airplane accelerating more."
  • "Increasing the acceleration of the airplane causes the engine to provide more force."

Thus, the most accurate answer regarding acceleration and mass is:

Decreasing the mass of the airplane will result in the airplane accelerating more.