posted by Cooper on .
A baseball bat balances 61.1 cm from one end. If a 0.600 kg glove is attached to that end, the balance point moves 22.7 cm toward the glove. Find the mass of the bat.
The Center of Mass of the bat (alone) is 61.1 cm from the end where the glove is hung.
With the glove there, the balance point moves to 61.1-22.7 = 38.4 cm from that end.
The torque about the new balance point is
Mbat*22.7 - 0.600*38.4 = 0
Mbat = 0.600kg*38.4/22.7 = 1.015 kg