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A simple pendulum 5.0 m in length oscill...

A simple pendulum `5.0` m in length oscillates at a location where `g=9.8" m s"^(-2)`. How many complete oscillations will it make in 10 minutes ?

Text Solution

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We are given, `l=5.0"m, g "=9.8" m s"^(-2)`
We know that, time period,
`T=2pisqrt(l/g)=2xx3.14sqrt((5)/(9.8))=4.4`s
We are to calculate, number of complete oscillations in 10 minutes
Number of complete oscillations in `4.4s=1`
Number of complete oscillations in 1 s =`(1)/(4.4)`
Number of compete oscillations in 10 minutes `=(1)/(4.4)xx60xx10=136`.
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