To determine what happens to the acceleration of the object when the net force is decreased, we can use Newton's second law of motion, which states:
\[ F = m \times a \]
Where:
- \( F \) is the net force,
- \( m \) is the mass,
- \( a \) is the acceleration.
First, we can calculate the initial acceleration when the net force is 0.8 N and the mass is 1.5 kg:
\[ a = \frac{F}{m} = \frac{0.8 , N}{1.5 , kg} \approx 0.53 , m/s^2 \]
Now, if the net force is decreased to 0.2 N, we can calculate the new acceleration:
\[ a = \frac{0.2 , N}{1.5 , kg} \approx 0.13 , m/s^2 \]
So, the new acceleration is 0.13 m/s², which is less than the original acceleration of approximately 0.53 m/s².
From the options provided, the correct answer is:
The acceleration decreases to a quarter of its original value, or about 0.13 m/s².
1 answer