A pendulum completes 2 oscillations in 5 seconds:
a)What is it's time period?
b)If gravity=9.8 m/s^-2,find it's length.
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5/2 secends
l/t^2=9.8
9.8/2=4.9is length
l/t^2=9.8
9.8/2=4.9is length
JMK1:
wrong
answer given in my book is 1.55
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