Question

where is center of mass of a baseball bat located
a. at the midpoint
b. closer to the thick end
c. closer to the handle
d. it depends on how heavy the bat is

Explanation:

The center of mass of an object is the point where the mass of the object can be considered to be concentrated. For a baseball bat, which has more mass at the thick end (the end used to hit the ball), the center of mass will be closer to the thick end. This is because the center of mass is influenced by the distribution of mass in the object. A uniform object (like a rod with equal mass throughout) would have its center of mass at the midpoint, but a baseball bat is not uniform - it has more mass at one end. The weight (which is related to mass, \(W = mg\)) distribution matters for the center of mass location, and it's not just about the total "how heavy" (mass) the bat is in a general sense, but how that mass is distributed. So, options A (midpoint - assumes uniform mass, which a bat isn't), C (closer to handle - opposite of correct mass distribution effect), and D (vague, as it's about mass distribution not total mass) are incorrect.

Answer:

B. Closer to the thick end