Final answer:
The change in momentum of the baseball when struck by a bat with a force of 35 N for a duration of 0.12 seconds is 4.2 kg·m/s. This is calculated using the impulse formula, which multiplies the force by the time the force is applied.
Step-by-step explanation:
The student's question involves calculating the magnitude of the change in momentum of a baseball when hit by a baseball bat. This question falls under the domain of Physics and is specifically related to the concept of impulse and momentum in dynamics.
To find the change in momentum, also known as impulse, we can use the formula Impulse (J) = Force (F) × Time (t). Given that the force exerted on the baseball is 35 N and the time interval for which the force is applied is 0.12 seconds, we can plug these values into the equation.
Using the formula:
J = 35 N × 0.12 s = 4.2 kg·m/s
Therefore, the magnitude of the change in momentum of the baseball is 4.2 kg·m/s. It is important to note that the impulse given to the object is equal to the change in momentum, according to the impulse-momentum theorem in classical mechanics.