Question

calculate the value of acceleration due to gravity g at a place where a simple pendulum of length 0.4m completes 20 oscillation in 20s​

Answer 1

Answer:

                             Here you go mate

Step-by-step explanation:

a = v - u /t

u = 0

v = oscillation x gravity

  = 20 x 10

  = 200

a = 200 - 0 / 20

 = 200/20

  = 10

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Answer 2

Answer:

1.58m s-2

correct answer