Question

A pendulum completes 7 swings every

Answer 1

Answer:

140 swings

Step-by-step explanation:

as we know that it completes 7 swings in 3 seconds so, to find swings of 1 second =7/3

an now we have to find swings of 60 seconds(1 minute=60 seconds)

so, swings of 1 min = 7/3×60

= 140 swings