Six pendulums of mass m and length k as shown are released from rest at the same angle from vertical. Rank the pendulums according to the number of complete cycles of motion each pendulum goes through per minute.
a) L=2m, m=4kg
b) L=2m m=2kg
c) L=4m m=1kg
d) L=1m m=4kg
e) L=1m m =2kg
f) L=4m m=4kg