Question

Which of the following is correct about the time period of a pendulum, whose length (length of thread) is 2 m and mass of whose bob (metallic ball) is 2 kg, when it is set in motion?

Answer 1

P = 2 * pi * (L / g)^1/2 period of simple pendulum

P = 6.28 * (2 / 9.8)^1/2 = 2.84 sec