Question

5. A pendulum completes 2 oscillations in 5 s.
(a) What is its time period ? (b) If g = 9.8 m s. find
its length​

Answer 1

2 oscillations in 5 s hence 1 oscillation in 2.5 s which is its time period

T=2π √l/g

2.5=2π√l/g

l=10×6.25/4π^2 =1.58m

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Answer 2

Answer:

Step-by-step explanation:

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