A pendulum, shown in the photograph below, is lifted to the 30 cm level toward the left of the picture and released. When it falls down to its minimum level, just below the suspension point, it encounters a peg at the 35 cm level. What will then happen? In particular, how high will the pendulum rise as it moves to the right? When the string hits the peg, how will that encounter effect the angular momentum? Will it be sufficiently increased such that it will rotate over the pin?
Click your mouse on the photograph to see the pendulum bob fall to the bottom (at half speed).
The pendulum bob will:
Click here for Answer #109 after March 25, 2002.
