Question

What is the frequency of a simple pendulum 2.2 m long (a) in a room, (b) in an elevator accelerating upward at a rate of 1.2 m/s², and (c) in free fall?

Answer 1

SOLUTION;

L= Length of pendulum =2.2 m

The frequency formula of pendulum is f

a)

f = 0.336 Hz

B)

When acceleration upward then the resultant is=g+a

So, frequency is

C)

When free fall then

T-mg=-mg

T=0

Now, frequency is

f= 0 hz