Final answer:
The acceleration of a 1.85 kg model rocket with a 150 N thrust is calculated using Newton's second law (F = ma) to be 81.08 m/s².
Step-by-step explanation:
To calculate the acceleration of the model rocket, we can use Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma). Since the given force is the thrust provided by the rocket motor, we simply divide this by the mass of the rocket to find the acceleration. Therefore, acceleration (a) can be calculated using the formula:
a = F / m
In this case, the thrust (F) is 150 N and the mass (m) of the rocket is 1.85 kg. Substituting these values in, we get:
a = 150 N / 1.85 kg
Acceleration (a) = 81.08 m/s²
So, the model rocket will have an acceleration of 81.08 meters per second squared when the rocket motor with a thrust of 150 N is activated.