A pendulum is made with a 4.00 kg mass suspended at the end of a 75.0 cm thin rod.The period of the small motion simple harmonic motion is
A) 2.45 sec.
B) 2.01 sec.
C) 1.74 sec.
D) 1.33 sec.
E) 1.04 sec.

Question

Quizplus · Accepted Answer

The period of small motion simple harmonic motion is given by:

T = 2π√(l/g)

where l is the length of the pendulum and g is the acceleration due to gravity.

In this case, l = 75.0 cm = 0.750 m and g = 9.81 m/s^2. Substituting these values into the above formula, we get:

T = 2π√(0.750/9.81) = 1.74 sec (to two significant figures)

Therefore, the best choice is (C).

A Pendulum Is Made with a 4