The same motor is used in rockets with different masses. The rockets have different accelerations. According to Newton’s second law, how is acceleration expected to change as the rocket mass increases? (1 point)

Responses

Acceleration cannot be predicted based on changes in mass.
Acceleration cannot be predicted based on changes in mass.

As rocket mass increases, acceleration increases.
As rocket mass increases, acceleration increases.

There are no changes in acceleration, as it would depend on the amount of force.
There are no changes in acceleration, as it would depend on the amount of force.

As rocket mass increases, acceleration decreases.

1 answer

According to Newton's second law, \( F = ma \), where \( F \) is the force applied, \( m \) is the mass of the object, and \( a \) is the acceleration. For a constant force (such as that produced by the same motor), if the mass of the rocket increases, the acceleration must decrease.

Therefore, the correct response is:

As rocket mass increases, acceleration decreases.