Final answer:
The mass of the baseball is 0.25 kg, calculated using Newton's second law of motion (F=ma) and the given values for force and acceleration.
Step-by-step explanation:
The student is asking how to find the mass of a baseball when it accelerates at 4.0x10³ m/s² after being hit with a force of 1.0x10³ N. To solve this problem, we can use Newton's second law of motion, which states that the force applied to an object is equal to the mass of the object multiplied by its acceleration (F=ma). By rearranging the formula to solve for mass (m), we get m = F/a.
Using the values provided:
m = (1.0x10³ N) / (4.0x10³ m/s²)
m = 0.25 kg
Therefore, the mass of the baseball is 0.25 kilograms.