Verified Answer :

AL2006

(10 seconds) / (2 cycles)

                     =    (10 / 2)  seconds/cycle

                     =          5 seconds/cycle.

That's the period of the pendulum's swing.

The frequency is just the reciprocal of the period ...  1 over it.

                         1 / (5 seconds per cycle)

                     =   5 cycles/second        (5 Hz)

Related Questions