Final answer:
The period of a 1.5-meter-long pendulum is approximately 2.45 seconds, calculated using the formula T = 2π√(L/g), where L is the length of the pendulum.
Step-by-step explanation:
The period of a pendulum depends on the length of the string and the acceleration due to gravity.
For small amplitudes (less than roughly 15°), the period T of a simple pendulum can be calculated using the formula T = 2π√(L/g), where L is the length of the pendulum and g is the acceleration due to gravity, typically 9.81 m/s² on Earth.
Substituting the given length of 1.5 meters into the formula yields:
T = 2π√(1.5/9.81)
Calculating this gives a period T of approximately 2.45 seconds.