To determine which object will have the least acceleration when the same force is applied to each, we can use Newton's second law of motion, which states:
\[ F = ma \]
Where \( F \) is the force, \( m \) is mass, and \( a \) is acceleration. Rearranging the equation gives us:
\[ a = \frac{F}{m} \]
From this equation, we can see that acceleration (\( a \)) is inversely proportional to mass (\( m \)). This means that the greater the mass of the object, the less acceleration it will experience when the same force is applied.
Now, let's compare the masses of the objects listed:
- Textbook: 1.65 kg
- Hardcover novel: 0.88 kg
- Paperback novel: 0.51 kg
- Spiral notebook: 0.54 kg
Among these, the textbook has the largest mass (1.65 kg). Therefore, the textbook will experience the least acceleration when the same force is applied to all the objects.
The correct response is:
textbook