Final answer:
The acceleration of the volleyball is 50 m/s², which is found by dividing the force exerted on the ball (25 N) by its mass (0.5 kg). The correct answer, 50 m/s², is not listed in the provided options.
Step-by-step explanation:
The acceleration of an object can be calculated using 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). To find the acceleration, we rearrange the formula to a = F/m.
In this case, a volleyball that has a mass of 0.5 kg is hit with a force of 25 N.
The acceleration (a) can be calculated as follows:
a = F/m = 25 N / 0.5 kg
a = 50 m/s²
Therefore, the correct answer is not listed in the provided options, as the acceleration is 50 m/s².