To find the force exerted on the tennis ball by the floor, we can use Newton's second law of motion, which states that \( F = m \cdot a \), where \( F \) is the force, \( m \) is the mass, and \( a \) is the acceleration.
- Mass of the ball: 0.1 kg
- Acceleration: The problem states that the ball accelerates at a rate of 10 meters per second squared (10 m/s²).
Now we can plug the values into the formula:
\[ F = m \cdot a = 0.1 , \text{kg} \cdot 10 , \text{m/s}² = 1 , \text{N} \]
So, the force exerted by the floor on the ball is 1 N.
Thus, the correct answer is:
1 N