"Extra" exercises on oscillations- 14.7P, 14.9P, 14.17P
 
 
 
 

Pendulum

• How long should a simple pendulum be to make its period 2 seconds?

• Now you place this pendulum in an elevator.  Upon doing this you notice that by your digital timer, the period of the pendulum is now 2.1 seconds.  Describe the motion of the elevator.