how long must a simple pendulum be if it is to make exactly
A pendulum makes 36 vibrations in exactly 60 s. What is its (a) period, and (b) frequency? 7. How long must a simple pendulum be if it is to make exactly one swing per second? (That is, one complete vibration takes exactly 2.0 s.) 8.. If a simple pendulum whose length is 1.50 m makes 72 oscillations in 3.00 min, what is the acceleration of gravity at its location? 5. A 2500 kg demolition ball swings on a cable 17.0 m long.