According to newton's 2nd law of motion, if you hit a baseball with a bat it will

The baseball will accelerate.

Explanation:

According to Newton's second law,

The force is the product of the mass and acceleration of the object.

In mathematically term

Where, m = mass

a = acceleration

If we hit a baseball with a bat it will accelerate by the applied force.

Hence, The baseball will accelerate.

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