A simple pendulum is 5 m long. What is the period of small oscillations for this pendulum if
it is located in an elevator
(a) Standing still?
(b) Moving upwards with constant velocity of 7.45 m/s?
(c) Accelerating upward at 5 m/s2?
(d) Accelerating downward at 5 m/s2?

Question

A simple pendulum is 5 m long. What is the period of small oscillations for this pendulum if
it is located in an elevator
(a) Standing still?
(b) Moving upwards with constant velocity of 7.45 m/s?
(c) Accelerating upward at 5 m/s2?
(d) Accelerating downward at 5 m/s2?

priyar · Answer

if the oscillations are small, it will undergo SHM .. so time period(T) is given by:
$$T = 2\pi \sqrt{\frac{ l }{ g }}$$ where l-length and g- gravitational acceleration..

priyar · Answer

l is constant and is equal to 5m. So decide how g will change in each case..