You are riding on a swing at the local playground. As you swing back and forth, you begin to think about your speed and kinetic energy (this is obviously a fictional story). These two quantities clearly change between the top of each swing (when you are reversing directions) and the bottom of each swing (when you are passing directly beneath the supporting beam). You wonder when each of these two quantities is at its maximum value. Actually, your speed is at its maximum
A)	at the bottom of a swing and your kinetic energy is at its maximum at the bottom of a swing.
B)	at the bottom of a swing and your kinetic energy is at its maximum at the top of a swing.
C)	at the top of a swing and your kinetic energy is at its maximum at the bottom of a swing.
D)	at the top of a swing and your kinetic energy is at its maximum at the top of a swing.
Answer:A
You are riding on a swing at the local playground. As you swing back and forth, you begin to think about your speed and kinetic energy (this is obviously a fictional story). These two quantities clearly change between the top of each swing (when you are reversing directions) and the bottom of each swing (when you are passing directly beneath the supporting beam). You wonder when each of these two quantities is at its maximum value. Actually, your speed is at its maximum
A)	at the bottom of a swing and your kinetic energy is at its maximum at the bottom of a swing. B)	at the bottom of a swing and your kinetic energy is at its maximum at the top of a swing. C)	at the top of a swing and your kinetic energy is at its maximum at the bottom of a swing. D)	at the top of a swing and your kinetic energy is at its maximum at the top of a swing.